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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384 products

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Manchon male male fileté en PEHDHDPE Threaded Male Male Coupling
      €0.22i.e. €0.19 excl. VAT
      Manchon male male fileté en PEHDHDPE Threaded Male Male Coupling
          €0.22i.e. €0.19 excl. VAT
          Manchon male male fileté en PEHDHDPE Threaded Male Male Coupling
              HDPE threaded male male coupling designed for your plumbing and watering installations. This double male fitting guarantees a secure and watertight connection between two female elements of your network. Made from high-density polyethylene, it offers exceptional resistance to chemical agents and...
              €0.22i.e. €0.19 excl. VAT
              Mixed items
              Manchon male male fileté en PEHDHDPE Threaded Male Male Coupling
                  HDPE threaded male male coupling designed for your plumbing and watering installations. This double male fitting guarantees a secure and watertight connection between two female elements of your network. Made from high-density polyethylene, it offers exceptional resistance to chemical agents and...
                  Mixed items
                  €0.22i.e. €0.19 excl. VAT
                  Half symmetrical Guillemin connector without lock with female threaded bushing
                      €9.98i.e. €8.32 excl. VAT
                      Half symmetrical Guillemin connector without lock with female threaded bushing
                          €9.98i.e. €8.32 excl. VAT
                          Half symmetrical Guillemin connector without lock with female threaded bushing
                              The Guillemin Female Symmetrical Half-Fitting without Lock (without jaws) is the ideal solution for your tapped fixed equipment. Made in France with a standard BSP thread, it allows a quick and hermetic connection with any coupling with a lock. Versatile and robust, it is indispensable for...
                              €9.98i.e. €8.32 excl. VAT
                              Mixed items
                              Half symmetrical Guillemin connector without lock with female threaded bushing
                                  The Guillemin Female Symmetrical Half-Fitting without Lock (without jaws) is the ideal solution for your tapped fixed equipment. Made in France with a standard BSP thread, it allows a quick and hermetic connection with any coupling with a lock. Versatile and robust, it is indispensable for...
                                  Mixed items
                                  €9.98i.e. €8.32 excl. VAT
                                  EPDM Guillemin Gasket White/Blue Dn20-150 MultitanksEPDM Gasket for Symmetric Guillemin Coupling, White/Blue Color
                                      €0.91i.e. €0.76 excl. VAT
                                      EPDM Guillemin Gasket White/Blue Dn20-150 MultitanksEPDM Gasket for Symmetric Guillemin Coupling, White/Blue Color
                                          €0.91i.e. €0.76 excl. VAT
                                          EPDM Guillemin Gasket White/Blue Dn20-150 MultitanksEPDM Gasket for Symmetric Guillemin Coupling, White/Blue Color
                                              The EPDM Gasket for Symmetric Guillemin Coupling in White/Blue guarantees perfect sealing for your professional hydraulic installations. Made from high-quality EPDM, it resists weather, chemicals and extreme temperatures. Available from Dn20 to Dn150 , this gasket...
                                              €0.91i.e. €0.76 excl. VAT
                                              Mixed items
                                              EPDM Guillemin Gasket White/Blue Dn20-150 MultitanksEPDM Gasket for Symmetric Guillemin Coupling, White/Blue Color
                                                  The EPDM Gasket for Symmetric Guillemin Coupling in White/Blue guarantees perfect sealing for your professional hydraulic installations. Made from high-quality EPDM, it resists weather, chemicals and extreme temperatures. Available from Dn20 to Dn150 , this gasket...
                                                  Mixed items
                                                  €0.91i.e. €0.76 excl. VAT
                                                  Male PVC capMale PVC Plug
                                                      €1.58i.e. €1.32 excl. VAT
                                                      Male PVC capMale PVC Plug
                                                          €1.58i.e. €1.32 excl. VAT
                                                          Male PVC capMale PVC Plug
                                                              Threaded PVC PN16 fittings
                                                              The Multitanks Male PVC-U Plug is the professional solution for closing your hydraulic installations with safety and watertightness . Designed to withstand pressures up to PN16 and equipped with a BSPP thread, it guarantees perfect integration into your piping systems. Available in a...
                                                              €1.58i.e. €1.32 excl. VAT
                                                              Mixed items
                                                              Male PVC capMale PVC Plug
                                                                  Threaded PVC PN16 fittings
                                                                  The Multitanks Male PVC-U Plug is the professional solution for closing your hydraulic installations with safety and watertightness . Designed to withstand pressures up to PN16 and equipped with a BSPP thread, it guarantees perfect integration into your piping systems. Available in a...
                                                                  Mixed items
                                                                  €1.58i.e. €1.32 excl. VAT
                                                                  Compression connection with BSP male threadingCompression connection with BSP male threading
                                                                      €1.73i.e. €1.44 excl. VAT
                                                                      Compression connection with BSP male threadingCompression connection with BSP male threading
                                                                          €1.73i.e. €1.44 excl. VAT
                                                                          Compression connection with BSP male threadingCompression connection with BSP male threading
                                                                              The Male Compression Adapter for PE Pipe is the ideal connection solution for bonding your polyethylene pipes to BSP threads. Thanks to its lubricated and captive seal, it guarantees a fast, secure and perfectly sealed installation, even in difficult conditions. Its ergonomic...
                                                                              €1.73i.e. €1.44 excl. VAT
                                                                              Mixed items
                                                                              Compression connection with BSP male threadingCompression connection with BSP male threading
                                                                                  The Male Compression Adapter for PE Pipe is the ideal connection solution for bonding your polyethylene pipes to BSP threads. Thanks to its lubricated and captive seal, it guarantees a fast, secure and perfectly sealed installation, even in difficult conditions. Its ergonomic...
                                                                                  Mixed items
                                                                                  €1.73i.e. €1.44 excl. VAT
                                                                                  Symmetrical Guillemin reduction fitting with locks
                                                                                      €45.80i.e. €38.17 excl. VAT
                                                                                      Symmetrical Guillemin reduction fitting with locks
                                                                                          €45.80i.e. €38.17 excl. VAT
                                                                                          Symmetrical Guillemin reduction fitting with locks
                                                                                              The symmetrical Guillemin reducing coupling with locks in aluminum is the perfect solution for safely adapting your pipe diameters. Made in France , this robust coupling enables watertight transition between two hose or valve sizes thanks to its 360° double locking system....
                                                                                              €45.80i.e. €38.17 excl. VAT
                                                                                              Mixed items
                                                                                              Symmetrical Guillemin reduction fitting with locks
                                                                                                  The symmetrical Guillemin reducing coupling with locks in aluminum is the perfect solution for safely adapting your pipe diameters. Made in France , this robust coupling enables watertight transition between two hose or valve sizes thanks to its 360° double locking system....
                                                                                                  Mixed items
                                                                                                  €45.80i.e. €38.17 excl. VAT
                                                                                                  Reduced Compression Sleeve for PE Tube | Guaranteed watertightnessReduced compression sleeve
                                                                                                      €4.67i.e. €3.89 excl. VAT
                                                                                                      Reduced Compression Sleeve for PE Tube | Guaranteed watertightnessReduced compression sleeve
                                                                                                          €4.67i.e. €3.89 excl. VAT
                                                                                                          Reduced Compression Sleeve for PE Tube | Guaranteed watertightnessReduced compression sleeve
                                                                                                              Compression fittings
                                                                                                              The Reduced Compression Sleeve for PE Pipe is the ideal accessory to ensure a tight transition between two pipe diameters. Equipped with a lubricated and captive seal, it guarantees a quick and secure installation without the risk of leakage. Its ergonomic nut makes it easy to...
                                                                                                              €4.67i.e. €3.89 excl. VAT
                                                                                                              Mixed items
                                                                                                              Reduced Compression Sleeve for PE Tube | Guaranteed watertightnessReduced compression sleeve
                                                                                                                  Compression fittings
                                                                                                                  The Reduced Compression Sleeve for PE Pipe is the ideal accessory to ensure a tight transition between two pipe diameters. Equipped with a lubricated and captive seal, it guarantees a quick and secure installation without the risk of leakage. Its ergonomic nut makes it easy to...
                                                                                                                  Mixed items
                                                                                                                  €4.67i.e. €3.89 excl. VAT
                                                                                                                  Union PE Elbow with 90° Compression | Lubricated & Captive Gasket
                                                                                                                      €2.65i.e. €2.21 excl. VAT
                                                                                                                      Union PE Elbow with 90° Compression | Lubricated & Captive Gasket
                                                                                                                          €2.65i.e. €2.21 excl. VAT
                                                                                                                          Union PE Elbow with 90° Compression | Lubricated & Captive Gasket
                                                                                                                              The 90° compression elbow for PE pipe is the ideal solution for achieving precise and robust angle changes in your hydraulic installations. Thanks to its lubricated and captive seal, it guarantees an instant seal and a secure installation, even under difficult assembly...
                                                                                                                              €2.65i.e. €2.21 excl. VAT
                                                                                                                              Mixed items
                                                                                                                              Union PE Elbow with 90° Compression | Lubricated & Captive Gasket
                                                                                                                                  The 90° compression elbow for PE pipe is the ideal solution for achieving precise and robust angle changes in your hydraulic installations. Thanks to its lubricated and captive seal, it guarantees an instant seal and a secure installation, even under difficult assembly...
                                                                                                                                  Mixed items
                                                                                                                                  €2.65i.e. €2.21 excl. VAT
                                                                                                                                  PVC female / female couplingFemale-Female PVC-U screw-in sleeve PN16: Straight tapped fitting
                                                                                                                                      €1.67i.e. €1.39 excl. VAT
                                                                                                                                      PVC female / female couplingFemale-Female PVC-U screw-in sleeve PN16: Straight tapped fitting
                                                                                                                                          €1.67i.e. €1.39 excl. VAT
                                                                                                                                          PVC female / female couplingFemale-Female PVC-U screw-in sleeve PN16: Straight tapped fitting
                                                                                                                                              The PN16 Screw-in PVC-U Female-Female Straight Sleeve is the ideal junction solution for your pressurized water distribution networks. Its threaded design allows for a robust, perfectly sealed and fully removable assembly, simplifying the maintenance of your pumps, filters and valves. Certified to withstand 16 bar, this PVC-U fitting is...
                                                                                                                                              €1.67i.e. €1.39 excl. VAT
                                                                                                                                              Mixed items
                                                                                                                                              PVC female / female couplingFemale-Female PVC-U screw-in sleeve PN16: Straight tapped fitting
                                                                                                                                                  The PN16 Screw-in PVC-U Female-Female Straight Sleeve is the ideal junction solution for your pressurized water distribution networks. Its threaded design allows for a robust, perfectly sealed and fully removable assembly, simplifying the maintenance of your pumps, filters and valves. Certified to withstand 16 bar, this PVC-U fitting is...
                                                                                                                                                  Mixed items
                                                                                                                                                  €1.67i.e. €1.39 excl. VAT
                                                                                                                                                  Symmetrical Guillemin stopper with lock and aluminum chain
                                                                                                                                                      €32.53i.e. €27.11 excl. VAT
                                                                                                                                                      Symmetrical Guillemin stopper with lock and aluminum chain
                                                                                                                                                          €32.53i.e. €27.11 excl. VAT
                                                                                                                                                          Symmetrical Guillemin stopper with lock and aluminum chain
                                                                                                                                                              The Guillemin symmetrical cap with lock and aluminium chain is the optimal solution for sealing and protecting your connections. Made in France , this robust cap ensures a perfect seal thanks to its secure manual lock and its included NBR seal. Its integrated chain prevents any...
                                                                                                                                                              €32.53i.e. €27.11 excl. VAT
                                                                                                                                                              Mixed items
                                                                                                                                                              Symmetrical Guillemin stopper with lock and aluminum chain
                                                                                                                                                                  The Guillemin symmetrical cap with lock and aluminium chain is the optimal solution for sealing and protecting your connections. Made in France , this robust cap ensures a perfect seal thanks to its secure manual lock and its included NBR seal. Its integrated chain prevents any...
                                                                                                                                                                  Mixed items
                                                                                                                                                                  €32.53i.e. €27.11 excl. VAT
                                                                                                                                                                  PVC fluted sleeveMale PVC-U screw-in barbed socket PN16 : Hose holder connection
                                                                                                                                                                      €3.80i.e. €3.17 excl. VAT
                                                                                                                                                                      PVC fluted sleeveMale PVC-U screw-in barbed socket PN16 : Hose holder connection
                                                                                                                                                                          €3.80i.e. €3.17 excl. VAT
                                                                                                                                                                          PVC fluted sleeveMale PVC-U screw-in barbed socket PN16 : Hose holder connection
                                                                                                                                                                              The PN16 PVC-U screw-in male fluted bushing is the ideal transitional solution for connecting your rigid pipes to pressure hoses. Its robust design allows for a perfectly sealed connection between a female thread and a flexible hose, simplifying the configuration of your pumps, cascades and irrigation systems. Certified to withstand 16 bar, this PVC-U fitting...
                                                                                                                                                                              €3.80i.e. €3.17 excl. VAT
                                                                                                                                                                              Mixed items
                                                                                                                                                                              PVC fluted sleeveMale PVC-U screw-in barbed socket PN16 : Hose holder connection
                                                                                                                                                                                  The PN16 PVC-U screw-in male fluted bushing is the ideal transitional solution for connecting your rigid pipes to pressure hoses. Its robust design allows for a perfectly sealed connection between a female thread and a flexible hose, simplifying the configuration of your pumps, cascades and irrigation systems. Certified to withstand 16 bar, this PVC-U fitting...
                                                                                                                                                                                  Mixed items
                                                                                                                                                                                  €3.80i.e. €3.17 excl. VAT
                                                                                                                                                                                  Bouchon femelle BSP en PEHDBSP Female Cap in HDPE
                                                                                                                                                                                      €0.69i.e. €0.57 excl. VAT
                                                                                                                                                                                      Bouchon femelle BSP en PEHDBSP Female Cap in HDPE
                                                                                                                                                                                          €0.69i.e. €0.57 excl. VAT
                                                                                                                                                                                          Bouchon femelle BSP en PEHDBSP Female Cap in HDPE
                                                                                                                                                                                              BSP threaded fittings
                                                                                                                                                                                              This BSP female cap in HDPE Multitanks guarantees perfect sealing for your professional hydraulic installations. Made of high-density polyethylene, it resists temperature variations and chemicals. Compatible with all BSP threaded fittings , it ensures hermetic and durable closure of your pipes, IBC...
                                                                                                                                                                                              €0.69i.e. €0.57 excl. VAT
                                                                                                                                                                                              Mixed items
                                                                                                                                                                                              Bouchon femelle BSP en PEHDBSP Female Cap in HDPE
                                                                                                                                                                                                  BSP threaded fittings
                                                                                                                                                                                                  This BSP female cap in HDPE Multitanks guarantees perfect sealing for your professional hydraulic installations. Made of high-density polyethylene, it resists temperature variations and chemicals. Compatible with all BSP threaded fittings , it ensures hermetic and durable closure of your pipes, IBC...
                                                                                                                                                                                                  Mixed items
                                                                                                                                                                                                  €0.69i.e. €0.57 excl. VAT