Fittings: pro, plumbing and watering connections | Multitanks

Fittings

The "Fittings" category of multitanks.com offers you a complete range of solutions to connect and secure your equipment, whether for industry, agriculture or the home. Find all the types of essential fittings, from those suitable for tanks IBC plumbing fittings, not to mention specialized fittings such as Guillemin, Camlock, Express, or stainless steel and food-grade models. Designed to ensure optimal compatibility and reliability, our fittings are selected to meet durability and safety requirements, even in the most demanding environments. Whether you need a quick coupling for a specific project or a robust solution for intensive use, multitanks.com offers a variety of fittings that adapt to the needs of each user. Enjoy a quick and easy shopping experience, with the assurance of finding a professional-quality fitting at a great value.

Got a part in your hand and need to know what screws onto it? Our fitting finder starts from your thread and lists every compatible part, with the inch / millimetre conversion.

Not sure which fitting you need? Tell us what you have, we show you what screws onto it — live prices and stock.

Pipe thread chart: inch / mm conversion (BSP, 15/21, 20/27, S60x6)

A “1/2 inch” thread measures 20.96 mm, not 12.7: in plumbing, the inch size is not converted, it is read from a chart. Here you will find the inch / mm correspondence of every common thread (BSP or “gas thread”, French names 15/21 · 20/27 · 26/34, NPT, S60x6 IBC tanks, Guillemin, Camlock, PVC), a tool that identifies your thread and the fitting that goes with it, and the pitfalls to avoid.

Which thread do you have? Which fitting do you need?

No need to know the name of your thread. Tell us what you need to connect to, or type what you know (“20/27”, “3/4 inch”, “S60x6”, “26.4 mm”): we identify the thread and show you the fittings that go with it. Dimensions according to ISO 228, ISO 7 and ASME B1.20.1.

20/27 · 26/34BSP / gas S60x6 · S100x8Camlock Guillemin DNNPT
✔ Shipped next working day from our stock✔ 4.5/5 from more than 6,400 customer reviews✔ Not sure? Describe what you need, we will find the fitting with you⎙ Printable thread gauge (PDF, actual size)

No need to know the name of your thread. Just answer the question: what do you need to connect to?

You already know the name of your thread? Type it the way you say it: 20/27, 26/34, 3/4 inch, S60x6… everything works.

Examples:

Tell us what you have and what you want to get: we look for the matching fitting in our catalogue.

Keeps only parts whose material is known and matches, for every part of the solution.
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Female aluminum camlock plug - DC type
      €5.94i.e. €4.95 excl. VAT
      Female aluminum camlock plug - DC type
          €5.94i.e. €4.95 excl. VAT
          Female aluminum camlock plug - DC type
              The Female Camlock Plug Type DC in aluminium is the professional solution for effectively securing the ends of your piping systems. Designed to prevent leaks and unwanted air ingress, this component guarantees a perfect seal and exceptional resistance. Compatible with all Camlock installations, it offers...
              €5.94i.e. €4.95 excl. VAT
              Mixed items
              Female aluminum camlock plug - DC type
                  The Female Camlock Plug Type DC in aluminium is the professional solution for effectively securing the ends of your piping systems. Designed to prevent leaks and unwanted air ingress, this component guarantees a perfect seal and exceptional resistance. Compatible with all Camlock installations, it offers...
                  Mixed items
                  €5.94i.e. €4.95 excl. VAT
                  Product sheet Male coupling 2 "- straight barbed Ø50mm2'' male fitting - straight barbed Ø50mm
                      €4.35i.e. €3.63 excl. VAT
                      Product sheet Male coupling 2 "- straight barbed Ø50mm2'' male fitting - straight barbed Ø50mm
                          €4.35i.e. €3.63 excl. VAT
                          Product sheet Male coupling 2 "- straight barbed Ø50mm2'' male fitting - straight barbed Ø50mm
                              Male BSP threaded fitting - straight hose tail
                              Professional CPP barbed fitting in glass fiber reinforced polypropylene (30%). 2'' BSP male thread with straight barbed end Ø50mm for watertight and durable connections. Designed for demanding industrial and agricultural installations. Excellent mechanical and chemical resistance. Robust solution for your...
                              €4.35i.e. €3.63 excl. VAT
                              In Stock 28 Available
                              Product sheet Male coupling 2 "- straight barbed Ø50mm2'' male fitting - straight barbed Ø50mm
                                  Male BSP threaded fitting - straight hose tail
                                  Professional CPP barbed fitting in glass fiber reinforced polypropylene (30%). 2'' BSP male thread with straight barbed end Ø50mm for watertight and durable connections. Designed for demanding industrial and agricultural installations. Excellent mechanical and chemical resistance. Robust solution for your...
                                  In Stock 28 Available
                                  €4.35i.e. €3.63 excl. VAT
                                  Clé tricoise en inox toutes tailles pour raccords symétriques DN25 à DN150
                                      €54.47i.e. €45.39 excl. VAT
                                      Clé tricoise en inox toutes tailles pour raccords symétriques DN25 à DN150
                                          €54.47i.e. €45.39 excl. VAT
                                          Clé tricoise en inox toutes tailles pour raccords symétriques DN25 à DN150
                                              The Multitanks stainless steel tricoise key is the essential professional tool for handling Guillemin symmetrical couplings from DN25 to DN150 in complete safety. Made of high-quality stainless steel, it resists corrosion and difficult environmental conditions perfectly. Its ergonomic design and its optimal...
                                              €54.47i.e. €45.39 excl. VAT
                                              Hurry Up Only 10 Items left
                                              Clé tricoise en inox toutes tailles pour raccords symétriques DN25 à DN150
                                                  The Multitanks stainless steel tricoise key is the essential professional tool for handling Guillemin symmetrical couplings from DN25 to DN150 in complete safety. Made of high-quality stainless steel, it resists corrosion and difficult environmental conditions perfectly. Its ergonomic design and its optimal...
                                                  Hurry Up Only 10 Items left
                                                  €54.47i.e. €45.39 excl. VAT
                                                  Zinc plated steel clamp, yellow chrome with hexagonal slotted screw
                                                      €0.83i.e. €0.69 excl. VAT
                                                      Zinc plated steel clamp, yellow chrome with hexagonal slotted screw
                                                          €0.83i.e. €0.69 excl. VAT
                                                          Zinc plated steel clamp, yellow chrome with hexagonal slotted screw
                                                              These clamp collars are made of high-quality zinged steel, flexible.
                                                              €0.83i.e. €0.69 excl. VAT
                                                              Mixed items
                                                              Zinc plated steel clamp, yellow chrome with hexagonal slotted screw
                                                                  These clamp collars are made of high-quality zinged steel, flexible.
                                                                  Mixed items
                                                                  €0.83i.e. €0.69 excl. VAT
                                                                  Seal for NBR cam fittingNBR Camlock Fitting Gasket
                                                                      €0.77i.e. €0.64 excl. VAT
                                                                      Seal for NBR cam fittingNBR Camlock Fitting Gasket
                                                                          €0.77i.e. €0.64 excl. VAT
                                                                          Seal for NBR cam fittingNBR Camlock Fitting Gasket
                                                                              This NBR camlock fitting gasket ensures perfect sealing for your industrial and agricultural installations. Made from superior quality nitrile rubber, it resists hydrocarbons, oils and common chemicals. Ideal for Camlock quick connections, this gasket guarantees safety and reliability in your fluid transfers. Compatible with all...
                                                                              €0.77i.e. €0.64 excl. VAT
                                                                              Mixed items
                                                                              Seal for NBR cam fittingNBR Camlock Fitting Gasket
                                                                                  This NBR camlock fitting gasket ensures perfect sealing for your industrial and agricultural installations. Made from superior quality nitrile rubber, it resists hydrocarbons, oils and common chemicals. Ideal for Camlock quick connections, this gasket guarantees safety and reliability in your fluid transfers. Compatible with all...
                                                                                  Mixed items
                                                                                  €0.77i.e. €0.64 excl. VAT
                                                                                  Galvanized malleable cast iron female-female sleeveGalvanized malleable cast iron female-female sleeve
                                                                                      €1.92i.e. €1.60 excl. VAT
                                                                                      Galvanized malleable cast iron female-female sleeveGalvanized malleable cast iron female-female sleeve
                                                                                          €1.92i.e. €1.60 excl. VAT
                                                                                          Galvanized malleable cast iron female-female sleeveGalvanized malleable cast iron female-female sleeve
                                                                                              Galvanized malleable cast iron fittings EN 10242
                                                                                              The Female-Female Sleeve made of galvanized malleable cast iron is a durable junction fitting that is essential for the continuity of piping lines. Made of EN-GJMB-350-10 and EN 10242 and ISO 49 certified, it ensures a robust connection for water, gas, steam and HVAC systems. The hot-dip galvanizing coating, with a minimum thickness of...
                                                                                              €1.92i.e. €1.60 excl. VAT
                                                                                              Mixed items
                                                                                              Galvanized malleable cast iron female-female sleeveGalvanized malleable cast iron female-female sleeve
                                                                                                  Galvanized malleable cast iron fittings EN 10242
                                                                                                  The Female-Female Sleeve made of galvanized malleable cast iron is a durable junction fitting that is essential for the continuity of piping lines. Made of EN-GJMB-350-10 and EN 10242 and ISO 49 certified, it ensures a robust connection for water, gas, steam and HVAC systems. The hot-dip galvanizing coating, with a minimum thickness of...
                                                                                                  Mixed items
                                                                                                  €1.92i.e. €1.60 excl. VAT
                                                                                                  Single male/female reduction in galvanized malleable cast iron - anti-corrosion excellenceSingle male/female reduction in galvanized malleable cast iron - anti-corrosion excellence
                                                                                                      €1.14i.e. €0.95 excl. VAT
                                                                                                      Single male/female reduction in galvanized malleable cast iron - anti-corrosion excellenceSingle male/female reduction in galvanized malleable cast iron - anti-corrosion excellence
                                                                                                          €1.14i.e. €0.95 excl. VAT
                                                                                                          Single male/female reduction in galvanized malleable cast iron - anti-corrosion excellenceSingle male/female reduction in galvanized malleable cast iron - anti-corrosion excellence
                                                                                                              This single male/female reduction fitting is made of malleable cast iron and benefits from hot-dip galvanizing, providing exceptional corrosion resistance. It is essential to ensure reliable diameter transitions in sweet fluid and gas networks. Compliant with EN 10242 and ISO 49, it is perfect for water, steam, gas and HVAC installations. The ISO 7-1 (BSPT) thread (tapered male R /...
                                                                                                              €1.14i.e. €0.95 excl. VAT
                                                                                                              Mixed items
                                                                                                              Single male/female reduction in galvanized malleable cast iron - anti-corrosion excellenceSingle male/female reduction in galvanized malleable cast iron - anti-corrosion excellence
                                                                                                                  This single male/female reduction fitting is made of malleable cast iron and benefits from hot-dip galvanizing, providing exceptional corrosion resistance. It is essential to ensure reliable diameter transitions in sweet fluid and gas networks. Compliant with EN 10242 and ISO 49, it is perfect for water, steam, gas and HVAC installations. The ISO 7-1 (BSPT) thread (tapered male R /...
                                                                                                                  Mixed items
                                                                                                                  €1.14i.e. €0.95 excl. VAT
                                                                                                                  Reduced Brass Male-Female Nipple | Drinking Water | CW617N PN16Reducing nipple male female in brass
                                                                                                                      €2.36i.e. €1.96 excl. VAT
                                                                                                                      Reduced Brass Male-Female Nipple | Drinking Water | CW617N PN16Reducing nipple male female in brass
                                                                                                                          €2.36i.e. €1.96 excl. VAT
                                                                                                                          Reduced Brass Male-Female Nipple | Drinking Water | CW617N PN16Reducing nipple male female in brass
                                                                                                                              Fit your pipe diameters safely with this CW617N Brass Male-Female Reduced Nipple . Certified for human consumption and drinking water networks, this forged fitting can withstand a pressure rating of 16 Bar . Its wide gasket spans ensure a perfect seal, while its...
                                                                                                                              €2.36i.e. €1.96 excl. VAT
                                                                                                                              Mixed items
                                                                                                                              Reduced Brass Male-Female Nipple | Drinking Water | CW617N PN16Reducing nipple male female in brass
                                                                                                                                  Fit your pipe diameters safely with this CW617N Brass Male-Female Reduced Nipple . Certified for human consumption and drinking water networks, this forged fitting can withstand a pressure rating of 16 Bar . Its wide gasket spans ensure a perfect seal, while its...
                                                                                                                                  Mixed items
                                                                                                                                  €2.36i.e. €1.96 excl. VAT
                                                                                                                                  Malon reduced male / male in PVC to screwReduced Male-Male PVC-U Screw-On Nipple PN16: Threaded Adapter
                                                                                                                                      €1.48i.e. €1.24 excl. VAT
                                                                                                                                      Malon reduced male / male in PVC to screwReduced Male-Male PVC-U Screw-On Nipple PN16: Threaded Adapter
                                                                                                                                          €1.48i.e. €1.24 excl. VAT
                                                                                                                                          Malon reduced male / male in PVC to screwReduced Male-Male PVC-U Screw-On Nipple PN16: Threaded Adapter
                                                                                                                                              The Male-Male PVC-U screw-in reduced nipple PN16 is the ideal adaptation solution for coupling your threaded piping elements of different diameters under pressure. Its threaded design allows for a robust, perfectly sealed and modular assembly, simplifying the transition between your pumps, valves and filtration circuits of various sizes. Certified to withstand...
                                                                                                                                              €1.48i.e. €1.24 excl. VAT
                                                                                                                                              Mixed items
                                                                                                                                              Malon reduced male / male in PVC to screwReduced Male-Male PVC-U Screw-On Nipple PN16: Threaded Adapter
                                                                                                                                                  The Male-Male PVC-U screw-in reduced nipple PN16 is the ideal adaptation solution for coupling your threaded piping elements of different diameters under pressure. Its threaded design allows for a robust, perfectly sealed and modular assembly, simplifying the transition between your pumps, valves and filtration circuits of various sizes. Certified to withstand...
                                                                                                                                                  Mixed items
                                                                                                                                                  €1.48i.e. €1.24 excl. VAT
                                                                                                                                                  Camlock Type B Aluminum Fitting | MultitanksFemale Camlock Connection - Aluminum Male Threaded Tip - Type B
                                                                                                                                                      €9.11i.e. €7.59 excl. VAT
                                                                                                                                                      Camlock Type B Aluminum Fitting | MultitanksFemale Camlock Connection - Aluminum Male Threaded Tip - Type B
                                                                                                                                                          €9.11i.e. €7.59 excl. VAT
                                                                                                                                                          Camlock Type B Aluminum Fitting | MultitanksFemale Camlock Connection - Aluminum Male Threaded Tip - Type B
                                                                                                                                                              The Camlock Type B Aluminium Fitting is the ideal solution for fast and secure connections in the agricultural, chemical and petroleum sectors. This female coupler with male threaded end guarantees a perfect seal and can be installed without tools, drastically reducing your maintenance time....
                                                                                                                                                              €9.11i.e. €7.59 excl. VAT
                                                                                                                                                              Mixed items
                                                                                                                                                              Camlock Type B Aluminum Fitting | MultitanksFemale Camlock Connection - Aluminum Male Threaded Tip - Type B
                                                                                                                                                                  The Camlock Type B Aluminium Fitting is the ideal solution for fast and secure connections in the agricultural, chemical and petroleum sectors. This female coupler with male threaded end guarantees a perfect seal and can be installed without tools, drastically reducing your maintenance time....
                                                                                                                                                                  Mixed items
                                                                                                                                                                  €9.11i.e. €7.59 excl. VAT
                                                                                                                                                                  Reduced Sleeve Female/Female Stainless Steel 316 ISO 4144 | PN 20 BarFemale/female reduced sleeve in stainless steel 316
                                                                                                                                                                      €2.32i.e. €1.93 excl. VAT
                                                                                                                                                                      Reduced Sleeve Female/Female Stainless Steel 316 ISO 4144 | PN 20 BarFemale/female reduced sleeve in stainless steel 316
                                                                                                                                                                          €2.32i.e. €1.93 excl. VAT
                                                                                                                                                                          Reduced Sleeve Female/Female Stainless Steel 316 ISO 4144 | PN 20 BarFemale/female reduced sleeve in stainless steel 316
                                                                                                                                                                              The AISI 316 Reduced Female/Female  Stainless Steel Sleeve is the ideal solution to adapt your pipe diameters with maximum tightness. ISO 4144 compliant and with a pressure of 20 bar, it guarantees a reliable transition thanks to its ISO 7-1 (BSPT) thread. Resistant to extreme temperatures...
                                                                                                                                                                              €2.32i.e. €1.93 excl. VAT
                                                                                                                                                                              Mixed items
                                                                                                                                                                              Reduced Sleeve Female/Female Stainless Steel 316 ISO 4144 | PN 20 BarFemale/female reduced sleeve in stainless steel 316
                                                                                                                                                                                  The AISI 316 Reduced Female/Female  Stainless Steel Sleeve is the ideal solution to adapt your pipe diameters with maximum tightness. ISO 4144 compliant and with a pressure of 20 bar, it guarantees a reliable transition thanks to its ISO 7-1 (BSPT) thread. Resistant to extreme temperatures...
                                                                                                                                                                                  Mixed items
                                                                                                                                                                                  €2.32i.e. €1.93 excl. VAT
                                                                                                                                                                                  Brass F/M PN16 Reduced Nipple - Gas Thread FittingMale/Female Reduced Nipple - Female Superior to Male
                                                                                                                                                                                      €2.68i.e. €2.23 excl. VAT
                                                                                                                                                                                      Brass F/M PN16 Reduced Nipple - Gas Thread FittingMale/Female Reduced Nipple - Female Superior to Male
                                                                                                                                                                                          €2.68i.e. €2.23 excl. VAT
                                                                                                                                                                                          Brass F/M PN16 Reduced Nipple - Gas Thread FittingMale/Female Reduced Nipple - Female Superior to Male
                                                                                                                                                                                              This Brass Reduced Nipple Female/Male (P/N 1246) is a high-quality adapter designed for reliable and secure connections in plumbing and drinking water systems. Made of CW617N Brass , it benefits from the certification of the decree of May 29, 1997, guaranteeing its non-toxicity and its perfect suitability for contact with water intended for human...
                                                                                                                                                                                              €2.68i.e. €2.23 excl. VAT
                                                                                                                                                                                              Mixed items
                                                                                                                                                                                              Brass F/M PN16 Reduced Nipple - Gas Thread FittingMale/Female Reduced Nipple - Female Superior to Male
                                                                                                                                                                                                  This Brass Reduced Nipple Female/Male (P/N 1246) is a high-quality adapter designed for reliable and secure connections in plumbing and drinking water systems. Made of CW617N Brass , it benefits from the certification of the decree of May 29, 1997, guaranteeing its non-toxicity and its perfect suitability for contact with water intended for human...
                                                                                                                                                                                                  Mixed items
                                                                                                                                                                                                  €2.68i.e. €2.23 excl. VAT