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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NBR Guillemin Coupling Gasket Black Dn20-Dn100 - Ref 107035NBR Gasket for Symmetrical Guillemin Coupling, Black Color
      €1.04i.e. €0.87 excl. VAT
      NBR Guillemin Coupling Gasket Black Dn20-Dn100 - Ref 107035NBR Gasket for Symmetrical Guillemin Coupling, Black Color
          €1.04i.e. €0.87 excl. VAT
          NBR Guillemin Coupling Gasket Black Dn20-Dn100 - Ref 107035NBR Gasket for Symmetrical Guillemin Coupling, Black Color
              The NBR gasket for symmetrical Guillemin coupling in black guarantees perfect sealing for your hydraulic installations from Dn20 to Dn100. Specially designed for professional applications, this NBR rubber gasket resists hydrocarbons and offers exceptional durability in industrial, agricultural and fire safety sectors. <p...
              €1.04i.e. €0.87 excl. VAT
              Mixed items
              NBR Guillemin Coupling Gasket Black Dn20-Dn100 - Ref 107035NBR Gasket for Symmetrical Guillemin Coupling, Black Color
                  The NBR gasket for symmetrical Guillemin coupling in black guarantees perfect sealing for your hydraulic installations from Dn20 to Dn100. Specially designed for professional applications, this NBR rubber gasket resists hydrocarbons and offers exceptional durability in industrial, agricultural and fire safety sectors. <p...
                  Mixed items
                  €1.04i.e. €0.87 excl. VAT
                  Guillemin symmetrical half connector with flanged reduced ring bush
                      €37.84i.e. €31.54 excl. VAT
                      Guillemin symmetrical half connector with flanged reduced ring bush
                          €37.84i.e. €31.54 excl. VAT
                          Guillemin symmetrical half connector with flanged reduced ring bush
                              The Guillemin symmetrical half coupling with reduced corrugated sleeve and collar is the reference solution for secure crimping on technical hoses. Manufactured in France from high-strength aluminium (T6), it complies with NF E 29.572 and EN 14420-8 standards. Capable of withstanding a service...
                              €37.84i.e. €31.54 excl. VAT
                              Mixed items
                              Guillemin symmetrical half connector with flanged reduced ring bush
                                  The Guillemin symmetrical half coupling with reduced corrugated sleeve and collar is the reference solution for secure crimping on technical hoses. Manufactured in France from high-strength aluminium (T6), it complies with NF E 29.572 and EN 14420-8 standards. Capable of withstanding a service...
                                  Mixed items
                                  €37.84i.e. €31.54 excl. VAT
                                  PVC fluted sleeveSpigot Fitting in PVC to Glue
                                      €3.20i.e. €2.67 excl. VAT
                                      PVC fluted sleeveSpigot Fitting in PVC to Glue
                                          €3.20i.e. €2.67 excl. VAT
                                          PVC fluted sleeveSpigot Fitting in PVC to Glue
                                              Codital PVC-U Spigot Fitting specially designed for hydraulic and plumbing glued assemblies. Available in dimensions from 16 to 63 mm , it guarantees a perfect seal and optimal resistance thanks to professional-grade PVC-U. Ideal for both homeowners and professionals, this fitting ensures easy and durable...
                                              €3.20i.e. €2.67 excl. VAT
                                              Mixed items
                                              PVC fluted sleeveSpigot Fitting in PVC to Glue
                                                  Codital PVC-U Spigot Fitting specially designed for hydraulic and plumbing glued assemblies. Available in dimensions from 16 to 63 mm , it guarantees a perfect seal and optimal resistance thanks to professional-grade PVC-U. Ideal for both homeowners and professionals, this fitting ensures easy and durable...
                                                  Mixed items
                                                  €3.20i.e. €2.67 excl. VAT
                                                  Male/female or male/male mixed PVC adapter to screw and stickMale / female or male / male mixed PVC adapter for screwing and gluing
                                                      €1.21i.e. €1.01 excl. VAT
                                                      Male/female or male/male mixed PVC adapter to screw and stickMale / female or male / male mixed PVC adapter for screwing and gluing
                                                          €1.21i.e. €1.01 excl. VAT
                                                          Male/female or male/male mixed PVC adapter to screw and stickMale / female or male / male mixed PVC adapter for screwing and gluing
                                                              Mixed PVC PN16 fittings (threaded and solvent-weld)
                                                              The Ezfitt mixed PVC adapter revolutionizes your installations by combining threaded and glued connections on a single element. PN16 compatible, it adapts perfectly to water, irrigation and industrial networks thanks to its dual fixation technology. Available in male/female or...
                                                              €1.21i.e. €1.01 excl. VAT
                                                              Mixed items
                                                              Male/female or male/male mixed PVC adapter to screw and stickMale / female or male / male mixed PVC adapter for screwing and gluing
                                                                  Mixed PVC PN16 fittings (threaded and solvent-weld)
                                                                  The Ezfitt mixed PVC adapter revolutionizes your installations by combining threaded and glued connections on a single element. PN16 compatible, it adapts perfectly to water, irrigation and industrial networks thanks to its dual fixation technology. Available in male/female or...
                                                                  Mixed items
                                                                  €1.21i.e. €1.01 excl. VAT
                                                                  Bouchon male en PEHDHigh Density Polyethylene Threaded Male Cap | Wide Range
                                                                      €0.21i.e. €0.18 excl. VAT
                                                                      Bouchon male en PEHDHigh Density Polyethylene Threaded Male Cap | Wide Range
                                                                          €0.21i.e. €0.18 excl. VAT
                                                                          Bouchon male en PEHDHigh Density Polyethylene Threaded Male Cap | Wide Range
                                                                              Effectively seal your tapped outlets with this heavy-duty HDPE male plug . Available in a wide range of BSP threads from 1/4'' to 3'' , it adapts to all your industrial and domestic needs. Its robust high-density polyethylene design ensures superior...
                                                                              €0.21i.e. €0.18 excl. VAT
                                                                              Mixed items
                                                                              Bouchon male en PEHDHigh Density Polyethylene Threaded Male Cap | Wide Range
                                                                                  Effectively seal your tapped outlets with this heavy-duty HDPE male plug . Available in a wide range of BSP threads from 1/4'' to 3'' , it adapts to all your industrial and domestic needs. Its robust high-density polyethylene design ensures superior...
                                                                                  Mixed items
                                                                                  €0.21i.e. €0.18 excl. VAT
                                                                                  Clé Tricoise en acier renforcé revêtue Epoxy rouge pour raccord pompier
                                                                                      €6.38i.e. €5.32 excl. VAT
                                                                                      Clé Tricoise en acier renforcé revêtue Epoxy rouge pour raccord pompier
                                                                                          €6.38i.e. €5.32 excl. VAT
                                                                                          Clé Tricoise en acier renforcé revêtue Epoxy rouge pour raccord pompier
                                                                                              The Multitanks tricoise key, reference 101523 , in reinforced steel with a red epoxy coating, is the essential professional tool for handling fire hose couplings safely. Built to withstand extreme conditions, it combines outstanding robustness and light weight for optimal comfort in use. Compatible with...
                                                                                              €6.38i.e. €5.32 excl. VAT
                                                                                              Mixed items
                                                                                              Clé Tricoise en acier renforcé revêtue Epoxy rouge pour raccord pompier
                                                                                                  The Multitanks tricoise key, reference 101523 , in reinforced steel with a red epoxy coating, is the essential professional tool for handling fire hose couplings safely. Built to withstand extreme conditions, it combines outstanding robustness and light weight for optimal comfort in use. Compatible with...
                                                                                                  Mixed items
                                                                                                  €6.38i.e. €5.32 excl. VAT
                                                                                                  Raccord de réduction Male Femelle en PEHDMale Female HDPE Reduction Fitting
                                                                                                      €0.45i.e. €0.38 excl. VAT
                                                                                                      Raccord de réduction Male Femelle en PEHDMale Female HDPE Reduction Fitting
                                                                                                          €0.45i.e. €0.38 excl. VAT
                                                                                                          Raccord de réduction Male Femelle en PEHDMale Female HDPE Reduction Fitting
                                                                                                              The male female HDPE reduction fitting (reference 4742A) is the ideal solution for connecting two pipes of different diameters in your irrigation installations. Made from high-density polyethylene, this fitting guarantees perfect sealing and exceptional resistance to weather, UV and chemicals. <p...
                                                                                                              €0.45i.e. €0.38 excl. VAT
                                                                                                              Mixed items
                                                                                                              Raccord de réduction Male Femelle en PEHDMale Female HDPE Reduction Fitting
                                                                                                                  The male female HDPE reduction fitting (reference 4742A) is the ideal solution for connecting two pipes of different diameters in your irrigation installations. Made from high-density polyethylene, this fitting guarantees perfect sealing and exceptional resistance to weather, UV and chemicals. <p...
                                                                                                                  Mixed items
                                                                                                                  €0.45i.e. €0.38 excl. VAT
                                                                                                                  Clé tricoise en laiton anti étincelle pour raccord symétrique
                                                                                                                      €17.64i.e. €14.70 excl. VAT
                                                                                                                      Clé tricoise en laiton anti étincelle pour raccord symétrique
                                                                                                                          €17.64i.e. €14.70 excl. VAT
                                                                                                                          Clé tricoise en laiton anti étincelle pour raccord symétrique
                                                                                                                              Fire hose spanner for Guillemin coupling
                                                                                                                              The Multitanks brass non-sparking tricoise key (Reference: 101529) is the essential professional tool for handling Guillemin symmetrical couplings in complete safety. Compatible from DN20 to DN150, it guarantees zero sparks in hazardous environments. Designed for fire services, industry and...
                                                                                                                              €17.64i.e. €14.70 excl. VAT
                                                                                                                              Mixed items
                                                                                                                              Clé tricoise en laiton anti étincelle pour raccord symétrique
                                                                                                                                  Fire hose spanner for Guillemin coupling
                                                                                                                                  The Multitanks brass non-sparking tricoise key (Reference: 101529) is the essential professional tool for handling Guillemin symmetrical couplings in complete safety. Compatible from DN20 to DN150, it guarantees zero sparks in hazardous environments. Designed for fire services, industry and...
                                                                                                                                  Mixed items
                                                                                                                                  €17.64i.e. €14.70 excl. VAT
                                                                                                                                  Réduction Male / femelle en PVCMale-Female PVC-U Screw-in Reduction PN16: Compact MF Adapter
                                                                                                                                      €1.93i.e. €1.61 excl. VAT
                                                                                                                                      Réduction Male / femelle en PVCMale-Female PVC-U Screw-in Reduction PN16: Compact MF Adapter
                                                                                                                                          €1.93i.e. €1.61 excl. VAT
                                                                                                                                          Réduction Male / femelle en PVCMale-Female PVC-U Screw-in Reduction PN16: Compact MF Adapter
                                                                                                                                              The PN16 Screw-in PVC-U Male-Female Reducer is the most compact retrofit solution for your pressurized water distribution networks. Its ingenious design allows you to reduce the diameter of a female thread without adding extra length to your piping, simplifying the connection of your pumps, valves and measuring instruments. Certified to withstand 16 bar, this...
                                                                                                                                              €1.93i.e. €1.61 excl. VAT
                                                                                                                                              Mixed items
                                                                                                                                              Réduction Male / femelle en PVCMale-Female PVC-U Screw-in Reduction PN16: Compact MF Adapter
                                                                                                                                                  The PN16 Screw-in PVC-U Male-Female Reducer is the most compact retrofit solution for your pressurized water distribution networks. Its ingenious design allows you to reduce the diameter of a female thread without adding extra length to your piping, simplifying the connection of your pumps, valves and measuring instruments. Certified to withstand 16 bar, this...
                                                                                                                                                  Mixed items
                                                                                                                                                  €1.93i.e. €1.61 excl. VAT
                                                                                                                                                  Raccord Union 3 pièces Femelle / Male en PVC3-Piece Female/Male Union Fitting in PVC
                                                                                                                                                      €11.48i.e. €9.56 excl. VAT
                                                                                                                                                      Raccord Union 3 pièces Femelle / Male en PVC3-Piece Female/Male Union Fitting in PVC
                                                                                                                                                          €11.48i.e. €9.56 excl. VAT
                                                                                                                                                          Raccord Union 3 pièces Femelle / Male en PVC3-Piece Female/Male Union Fitting in PVC
                                                                                                                                                              Mixed PVC PN16 fittings (threaded and solvent-weld)
                                                                                                                                                              The 3-Piece Female/Male Union Fitting PVC Codital offers an innovative mixed connection solution for your hydraulic installations. With its female cement and male threaded design, this PN16 fitting perfectly adapts to systems requiring flexibility and easy dismantling. Made from...
                                                                                                                                                              €11.48i.e. €9.56 excl. VAT
                                                                                                                                                              Mixed items
                                                                                                                                                              Raccord Union 3 pièces Femelle / Male en PVC3-Piece Female/Male Union Fitting in PVC
                                                                                                                                                                  Mixed PVC PN16 fittings (threaded and solvent-weld)
                                                                                                                                                                  The 3-Piece Female/Male Union Fitting PVC Codital offers an innovative mixed connection solution for your hydraulic installations. With its female cement and male threaded design, this PN16 fitting perfectly adapts to systems requiring flexibility and easy dismantling. Made from...
                                                                                                                                                                  Mixed items
                                                                                                                                                                  €11.48i.e. €9.56 excl. VAT
                                                                                                                                                                  Half symmetrical Guillemin connector with corrugated socket - aluminum
                                                                                                                                                                      €19.16i.e. €15.97 excl. VAT
                                                                                                                                                                      Half symmetrical Guillemin connector with corrugated socket - aluminum
                                                                                                                                                                          €19.16i.e. €15.97 excl. VAT
                                                                                                                                                                          Half symmetrical Guillemin connector with corrugated socket - aluminum
                                                                                                                                                                              The Guillemin symmetric half-coupling with annulated shank in aluminium is the professional solution for crimping technical flexible hoses. Made in France , this "fire hose" coupling is compatible with suction and discharge for various fields such as firefighting, petrochemical industry and...
                                                                                                                                                                              €19.16i.e. €15.97 excl. VAT
                                                                                                                                                                              Mixed items
                                                                                                                                                                              Half symmetrical Guillemin connector with corrugated socket - aluminum
                                                                                                                                                                                  The Guillemin symmetric half-coupling with annulated shank in aluminium is the professional solution for crimping technical flexible hoses. Made in France , this "fire hose" coupling is compatible with suction and discharge for various fields such as firefighting, petrochemical industry and...
                                                                                                                                                                                  Mixed items
                                                                                                                                                                                  €19.16i.e. €15.97 excl. VAT
                                                                                                                                                                                  Half Guillemin Symmetrical Socket with Male Threaded Lock
                                                                                                                                                                                      €10.64i.e. €8.87 excl. VAT
                                                                                                                                                                                      Half Guillemin Symmetrical Socket with Male Threaded Lock
                                                                                                                                                                                          €10.64i.e. €8.87 excl. VAT
                                                                                                                                                                                          Half Guillemin Symmetrical Socket with Male Threaded Lock
                                                                                                                                                                                              The male Guillemin symmetric half coupling in aluminium with lock is the ideal quick-connect solution for your industrial and agricultural installations. Made in France with a standard BSP thread, it enables secure mechanical locking thanks to its movable jaws. Suitable for...
                                                                                                                                                                                              €10.64i.e. €8.87 excl. VAT
                                                                                                                                                                                              Mixed items
                                                                                                                                                                                              Half Guillemin Symmetrical Socket with Male Threaded Lock
                                                                                                                                                                                                  The male Guillemin symmetric half coupling in aluminium with lock is the ideal quick-connect solution for your industrial and agricultural installations. Made in France with a standard BSP thread, it enables secure mechanical locking thanks to its movable jaws. Suitable for...
                                                                                                                                                                                                  Mixed items
                                                                                                                                                                                                  €10.64i.e. €8.87 excl. VAT