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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2 inch female camlock coupling - 50/63 female pvc
      €24.10i.e. €20.08 excl. VAT
      2 inch female camlock coupling - 50/63 female pvc
          €24.10i.e. €20.08 excl. VAT
          2 inch female camlock coupling - 50/63 female pvc
              Female Camlock - female PVC output
              The 2 inch female camlock fitting with 50/63 PVC outlet offers a professional connection solution for your 1000L IBC tanks. Made from glass fiber loaded polypropylene, this cam coupler ensures fast and secure installation . Compatible with 2 inch camlock valves, it...
              €24.10i.e. €20.08 excl. VAT
              In Stock 11 Available
              2 inch female camlock coupling - 50/63 female pvc
                  Female Camlock - female PVC output
                  The 2 inch female camlock fitting with 50/63 PVC outlet offers a professional connection solution for your 1000L IBC tanks. Made from glass fiber loaded polypropylene, this cam coupler ensures fast and secure installation . Compatible with 2 inch camlock valves, it...
                  In Stock 11 Available
                  €24.10i.e. €20.08 excl. VAT
                  Product sheet 3 "male BSP male spline - straight barbed 75mm
                      €5.95i.e. €4.96 excl. VAT
                      Product sheet 3 "male BSP male spline - straight barbed 75mm
                          €5.95i.e. €4.96 excl. VAT
                          Product sheet 3 "male BSP male spline - straight barbed 75mm
                              The male barbed fitting 3'' BSP - male ribbed straight 75mm CPP ensures a sealed and secure connection between your piping systems. Made of high-resistance polypropylene, this professional fitting is perfectly suited for industrial installations, IBC tanks and irrigation systems requiring mixed BSP/ribbed connections. <p...
                              €5.95i.e. €4.96 excl. VAT
                              Hurry Up Only 10 Items left
                              Product sheet 3 "male BSP male spline - straight barbed 75mm
                                  The male barbed fitting 3'' BSP - male ribbed straight 75mm CPP ensures a sealed and secure connection between your piping systems. Made of high-resistance polypropylene, this professional fitting is perfectly suited for industrial installations, IBC tanks and irrigation systems requiring mixed BSP/ribbed connections. <p...
                                  Hurry Up Only 10 Items left
                                  €5.95i.e. €4.96 excl. VAT
                                  Union 3 Pieces Stainless Steel 316 Conical Reach M/F | PN 20 Bar | ISO 4144Male/female conical-range union in stainless steel 316
                                      €6.98i.e. €5.82 excl. VAT
                                      Union 3 Pieces Stainless Steel 316 Conical Reach M/F | PN 20 Bar | ISO 4144Male/female conical-range union in stainless steel 316
                                          €6.98i.e. €5.82 excl. VAT
                                          Union 3 Pieces Stainless Steel 316 Conical Reach M/F | PN 20 Bar | ISO 4144Male/female conical-range union in stainless steel 316
                                              The AISI 316 stainless steel conical male/female span union is the ideal technical solution for piping networks that require frequent dismantling. ISO 4144 compliant and withstanding a pressure of 20 bar, this 3-piece fitting offers a high-performance metal-to-metal seal. Resistant to extreme...
                                              €6.98i.e. €5.82 excl. VAT
                                              Mixed items
                                              Union 3 Pieces Stainless Steel 316 Conical Reach M/F | PN 20 Bar | ISO 4144Male/female conical-range union in stainless steel 316
                                                  The AISI 316 stainless steel conical male/female span union is the ideal technical solution for piping networks that require frequent dismantling. ISO 4144 compliant and withstanding a pressure of 20 bar, this 3-piece fitting offers a high-performance metal-to-metal seal. Resistant to extreme...
                                                  Mixed items
                                                  €6.98i.e. €5.82 excl. VAT
                                                  Guillemin Symmetrical Half Groove Socket for Aluminum Collars
                                                      €45.71i.e. €38.09 excl. VAT
                                                      Guillemin Symmetrical Half Groove Socket for Aluminum Collars
                                                          €45.71i.e. €38.09 excl. VAT
                                                          Guillemin Symmetrical Half Groove Socket for Aluminum Collars
                                                              The Guillemin grooved socket aluminium half-coupling is designed for robust assembly with segmented clamps. Made in France to NF E 29.572 standards, it supports a working pressure of 16 bar. Ideal for petroleum, chemical and agricultural sectors, this AS7G T6-treated aluminium coupling ensures...
                                                              €45.71i.e. €38.09 excl. VAT
                                                              Mixed items
                                                              Guillemin Symmetrical Half Groove Socket for Aluminum Collars
                                                                  The Guillemin grooved socket aluminium half-coupling is designed for robust assembly with segmented clamps. Made in France to NF E 29.572 standards, it supports a working pressure of 16 bar. Ideal for petroleum, chemical and agricultural sectors, this AS7G T6-treated aluminium coupling ensures...
                                                                  Mixed items
                                                                  €45.71i.e. €38.09 excl. VAT
                                                                  Male-to-Female Reduction in Malleable Cast Iron with Black CoreMale-to-Female Reduction in Malleable Cast Iron with Black Core
                                                                      €1.84i.e. €1.53 excl. VAT
                                                                      Male-to-Female Reduction in Malleable Cast Iron with Black CoreMale-to-Female Reduction in Malleable Cast Iron with Black Core
                                                                          €1.84i.e. €1.53 excl. VAT
                                                                          Male-to-Female Reduction in Malleable Cast Iron with Black CoreMale-to-Female Reduction in Malleable Cast Iron with Black Core
                                                                              Malleable Cast Iron Fittings with Black Core | EN 10242
                                                                              This malleable cast iron male-to-male &nbsp;reducer with a black core is the ideal solution for adapting the pipe diameters on your installations. Manufactured in EN-GJMB-350-10 according to EN 10242 and ISO 49, it provides the robustness that is essential for water, gas, steam and HVAC distribution networks. The fitting features a Female &gt; Male configuration, essential...
                                                                              €1.84i.e. €1.53 excl. VAT
                                                                              Mixed items
                                                                              Male-to-Female Reduction in Malleable Cast Iron with Black CoreMale-to-Female Reduction in Malleable Cast Iron with Black Core
                                                                                  Malleable Cast Iron Fittings with Black Core | EN 10242
                                                                                  This malleable cast iron male-to-male &nbsp;reducer with a black core is the ideal solution for adapting the pipe diameters on your installations. Manufactured in EN-GJMB-350-10 according to EN 10242 and ISO 49, it provides the robustness that is essential for water, gas, steam and HVAC distribution networks. The fitting features a Female &gt; Male configuration, essential...
                                                                                  Mixed items
                                                                                  €1.84i.e. €1.53 excl. VAT
                                                                                  Express coupling with machined fluted shank with flange without seal
                                                                                      €6.64i.e. €5.54 excl. VAT
                                                                                      Express coupling with machined fluted shank with flange without seal
                                                                                          €6.64i.e. €5.54 excl. VAT
                                                                                          Express coupling with machined fluted shank with flange without seal
                                                                                              Express Fitting with Machined Serrated Tail and Flange from the Ezfitt heavy series, designed according to the French standard NF E29-573 . Made from high-quality forged brass, this professional fitting supports a pressure of 10 bar for water and compressed air installations. Ideal for industrial connections...
                                                                                              €6.64i.e. €5.54 excl. VAT
                                                                                              Mixed items
                                                                                              Express coupling with machined fluted shank with flange without seal
                                                                                                  Express Fitting with Machined Serrated Tail and Flange from the Ezfitt heavy series, designed according to the French standard NF E29-573 . Made from high-quality forged brass, this professional fitting supports a pressure of 10 bar for water and compressed air installations. Ideal for industrial connections...
                                                                                                  Mixed items
                                                                                                  €6.64i.e. €5.54 excl. VAT
                                                                                                  Union 3 Pieces Stainless Steel 316 Conical Reach F/F | PN 20 Bar | ISO 4144Female/female conical-range union in stainless steel 316
                                                                                                      €12.00i.e. €10.00 excl. VAT
                                                                                                      Union 3 Pieces Stainless Steel 316 Conical Reach F/F | PN 20 Bar | ISO 4144Female/female conical-range union in stainless steel 316
                                                                                                          €12.00i.e. €10.00 excl. VAT
                                                                                                          Union 3 Pieces Stainless Steel 316 Conical Reach F/F | PN 20 Bar | ISO 4144Female/female conical-range union in stainless steel 316
                                                                                                              The AISI 316 stainless steel conical span union is the reference solution for piping networks requiring quick dismantling. Compliant with the ISO 4144 standard and withstanding a pressure of 20 bar, this 3-piece fitting guarantees a perfect metal-to-metal seal. Its exceptional resistance to...
                                                                                                              €12.00i.e. €10.00 excl. VAT
                                                                                                              Mixed items
                                                                                                              Union 3 Pieces Stainless Steel 316 Conical Reach F/F | PN 20 Bar | ISO 4144Female/female conical-range union in stainless steel 316
                                                                                                                  The AISI 316 stainless steel conical span union is the reference solution for piping networks requiring quick dismantling. Compliant with the ISO 4144 standard and withstanding a pressure of 20 bar, this 3-piece fitting guarantees a perfect metal-to-metal seal. Its exceptional resistance to...
                                                                                                                  Mixed items
                                                                                                                  €12.00i.e. €10.00 excl. VAT
                                                                                                                  Half symmetrical fitting Guillemin, firefighter, female threaded socket lock in stainless steel
                                                                                                                      Half symmetrical fitting Guillemin, firefighter, female threaded socket lock in stainless steel
                                                                                                                          Half symmetrical fitting Guillemin, firefighter, female threaded socket lock in stainless steel
                                                                                                                              The Guillemin Female Stainless Steel Symmetrical Half Coupling with Lock is the ideal quick-connect solution for the suction and discharge of various media. Its BSP thread allows for easy installation on your existing networks, while its stainless steel construction ensures optimal corrosion...
                                                                                                                              €22.75i.e. €18.96 excl. VAT
                                                                                                                              Mixed items
                                                                                                                              Half symmetrical fitting Guillemin, firefighter, female threaded socket lock in stainless steel
                                                                                                                                  The Guillemin Female Stainless Steel Symmetrical Half Coupling with Lock is the ideal quick-connect solution for the suction and discharge of various media. Its BSP thread allows for easy installation on your existing networks, while its stainless steel construction ensures optimal corrosion...
                                                                                                                                  Mixed items
                                                                                                                                  €22.75i.e. €18.96 excl. VAT
                                                                                                                                  Symmetrical Guillemin stopper with stainless steel bolt and chain
                                                                                                                                      €20.33i.e. €16.94 excl. VAT
                                                                                                                                      Symmetrical Guillemin stopper with stainless steel bolt and chain
                                                                                                                                          €20.33i.e. €16.94 excl. VAT
                                                                                                                                          Symmetrical Guillemin stopper with stainless steel bolt and chain
                                                                                                                                              The Guillemin symmetrical stainless steel cap with lock and chain is the ideal safety solution for hermetically closing your unused fittings. Made of robust stainless steel, it protects your networks from corrosion and impurities while preventing residual leaks. Its integrated chain prevents...
                                                                                                                                              €20.33i.e. €16.94 excl. VAT
                                                                                                                                              Mixed items
                                                                                                                                              Symmetrical Guillemin stopper with stainless steel bolt and chain
                                                                                                                                                  The Guillemin symmetrical stainless steel cap with lock and chain is the ideal safety solution for hermetically closing your unused fittings. Made of robust stainless steel, it protects your networks from corrosion and impurities while preventing residual leaks. Its integrated chain prevents...
                                                                                                                                                  Mixed items
                                                                                                                                                  €20.33i.e. €16.94 excl. VAT
                                                                                                                                                  Male fast coupler DRY SHUT with female thread 1 '' BSPQuick connect couplers male female DRY SHUT with 1'' BSP female thread
                                                                                                                                                    • Pack
                                                                                                                                                    €68.36-10%€75.95i.e. €56.96 excl. VAT
                                                                                                                                                    Male fast coupler DRY SHUT with female thread 1 '' BSPQuick connect couplers male female DRY SHUT with 1'' BSP female thread
                                                                                                                                                      • Pack
                                                                                                                                                      €68.36-10%€75.95i.e. €56.96 excl. VAT
                                                                                                                                                      Male fast coupler DRY SHUT with female thread 1 '' BSPQuick connect couplers male female DRY SHUT with 1'' BSP female thread
                                                                                                                                                        • Pack
                                                                                                                                                        DRY SHUT quick connect couplers male female CPP with 1'' BSP female thread. Made of glass fiber reinforced polypropylene with high performance viton seals. These professional fittings enable quick connections/disconnections with automatic valve closure to prevent fluid loss and air infiltration. Ideal for industrial...
                                                                                                                                                        €68.36-10%€75.95i.e. €56.96 excl. VAT
                                                                                                                                                        Hurry Up Only 6 Items left
                                                                                                                                                        Male fast coupler DRY SHUT with female thread 1 '' BSPQuick connect couplers male female DRY SHUT with 1'' BSP female thread
                                                                                                                                                          • Pack
                                                                                                                                                          DRY SHUT quick connect couplers male female CPP with 1'' BSP female thread. Made of glass fiber reinforced polypropylene with high performance viton seals. These professional fittings enable quick connections/disconnections with automatic valve closure to prevent fluid loss and air infiltration. Ideal for industrial...
                                                                                                                                                          Hurry Up Only 6 Items left
                                                                                                                                                          €68.36-10%€75.95i.e. €56.96 excl. VAT
                                                                                                                                                          Clapet anti retour à ressort avec obturateur laiton, modèle compactAnti-spring back valve with brass shutter, compact model
                                                                                                                                                              €10.51i.e. €8.76 excl. VAT
                                                                                                                                                              Clapet anti retour à ressort avec obturateur laiton, modèle compactAnti-spring back valve with brass shutter, compact model
                                                                                                                                                                  €10.51i.e. €8.76 excl. VAT
                                                                                                                                                                  Clapet anti retour à ressort avec obturateur laiton, modèle compactAnti-spring back valve with brass shutter, compact model
                                                                                                                                                                      Anti-spring back valve with brass shutter, compact model
                                                                                                                                                                      €10.51i.e. €8.76 excl. VAT
                                                                                                                                                                      Mixed items
                                                                                                                                                                      Clapet anti retour à ressort avec obturateur laiton, modèle compactAnti-spring back valve with brass shutter, compact model
                                                                                                                                                                          Anti-spring back valve with brass shutter, compact model
                                                                                                                                                                          Mixed items
                                                                                                                                                                          €10.51i.e. €8.76 excl. VAT
                                                                                                                                                                          Compression transition adapter
                                                                                                                                                                              €20.92i.e. €17.43 excl. VAT
                                                                                                                                                                              Compression transition adapter
                                                                                                                                                                                  €20.92i.e. €17.43 excl. VAT
                                                                                                                                                                                  Compression transition adapter
                                                                                                                                                                                      Compression fittings
                                                                                                                                                                                      Ezfitt Compression Transition Adapter for easily connecting a PE pipe with any other pipe made of various materials: PVC, ABS, steel, stainless steel, copper, lead. Reliable compression fitting system with a high-resistance polypropylene body. Ideal for mixed installations requiring a transition between different types of pipework....
                                                                                                                                                                                      €20.92i.e. €17.43 excl. VAT
                                                                                                                                                                                      Mixed items
                                                                                                                                                                                      Compression transition adapter
                                                                                                                                                                                          Compression fittings
                                                                                                                                                                                          Ezfitt Compression Transition Adapter for easily connecting a PE pipe with any other pipe made of various materials: PVC, ABS, steel, stainless steel, copper, lead. Reliable compression fitting system with a high-resistance polypropylene body. Ideal for mixed installations requiring a transition between different types of pipework....
                                                                                                                                                                                          Mixed items
                                                                                                                                                                                          €20.92i.e. €17.43 excl. VAT