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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Courbe à grand rayon à 90° male femelle, galvanisée, en fonte malléableHigh-ray curve at 90 degrees female male, galvanized, malleable cast iron
      €5.11i.e. €4.26 excl. VAT
      Courbe à grand rayon à 90° male femelle, galvanisée, en fonte malléableHigh-ray curve at 90 degrees female male, galvanized, malleable cast iron
          €5.11i.e. €4.26 excl. VAT
          Courbe à grand rayon à 90° male femelle, galvanisée, en fonte malléableHigh-ray curve at 90 degrees female male, galvanized, malleable cast iron
              A 90-degree female long-ray curve, galvanized, malleable cast iron for the distribution of drinking water, gas, liquid steam and non-corrosive gas.
              €5.11i.e. €4.26 excl. VAT
              Mixed items
              Courbe à grand rayon à 90° male femelle, galvanisée, en fonte malléableHigh-ray curve at 90 degrees female male, galvanized, malleable cast iron
                  A 90-degree female long-ray curve, galvanized, malleable cast iron for the distribution of drinking water, gas, liquid steam and non-corrosive gas.
                  Mixed items
                  €5.11i.e. €4.26 excl. VAT
                  Distributeur coudé 3 vois femelle/femelle/femelle en fonte malléable3-way female/female/female malleable cast iron dispenser
                      €10.93i.e. €9.11 excl. VAT
                      Distributeur coudé 3 vois femelle/femelle/femelle en fonte malléable3-way female/female/female malleable cast iron dispenser
                          €10.93i.e. €9.11 excl. VAT
                          Distributeur coudé 3 vois femelle/femelle/femelle en fonte malléable3-way female/female/female malleable cast iron dispenser
                              White-heart malleable cast iron fittings
                              Bent dispenser 3 sees female/female/female in galvanized malleable cast iron
                              €10.93i.e. €9.11 excl. VAT
                              Mixed items
                              Distributeur coudé 3 vois femelle/femelle/femelle en fonte malléable3-way female/female/female malleable cast iron dispenser
                                  White-heart malleable cast iron fittings
                                  Bent dispenser 3 sees female/female/female in galvanized malleable cast iron
                                  Mixed items
                                  €10.93i.e. €9.11 excl. VAT
                                  Union Malleable cast iron conical male/female galvanized
                                      Union Malleable cast iron conical male/female galvanized
                                          Union Malleable cast iron conical male/female galvanized
                                              Discover our galvanized male and female conical cast malleable cast union, a reliable and robust connection solution for industrial piping systems. Easy to install and maintain, this high-quality part guarantees optimal performance and exceptional longevity.
                                              €44.33i.e. €36.94 excl. VAT
                                              Mixed items
                                              Union Malleable cast iron conical male/female galvanized
                                                  Discover our galvanized male and female conical cast malleable cast union, a reliable and robust connection solution for industrial piping systems. Easy to install and maintain, this high-quality part guarantees optimal performance and exceptional longevity.
                                                  Mixed items
                                                  €44.33i.e. €36.94 excl. VAT
                                                  Black Malleable Cast Iron Reduced Sleeve | F/F EN 10242 for PipingBlack Malleable Cast Iron Reduced Sleeve | F/F EN 10242 for Piping
                                                      €1.97i.e. €1.64 excl. VAT
                                                      Black Malleable Cast Iron Reduced Sleeve | F/F EN 10242 for PipingBlack Malleable Cast Iron Reduced Sleeve | F/F EN 10242 for Piping
                                                          €1.97i.e. €1.64 excl. VAT
                                                          Black Malleable Cast Iron Reduced Sleeve | F/F EN 10242 for PipingBlack Malleable Cast Iron Reduced Sleeve | F/F EN 10242 for Piping
                                                              Malleable Cast Iron Fittings with Black Core | EN 10242
                                                              The F/F Reduced Sleeve made of malleable cast iron with a black core is the ideal solution for adapting pipe diameters. Compliant with the European standards EN 10242 and ISO 49, and made from EN-GJMB-350-10 cast iron, it guarantees maximum robustness and waterproofness . Its black finish (70 μm) protects the fitting while giving it the aesthetics of an...
                                                              €1.97i.e. €1.64 excl. VAT
                                                              Mixed items
                                                              Black Malleable Cast Iron Reduced Sleeve | F/F EN 10242 for PipingBlack Malleable Cast Iron Reduced Sleeve | F/F EN 10242 for Piping
                                                                  Malleable Cast Iron Fittings with Black Core | EN 10242
                                                                  The F/F Reduced Sleeve made of malleable cast iron with a black core is the ideal solution for adapting pipe diameters. Compliant with the European standards EN 10242 and ISO 49, and made from EN-GJMB-350-10 cast iron, it guarantees maximum robustness and waterproofness . Its black finish (70 μm) protects the fitting while giving it the aesthetics of an...
                                                                  Mixed items
                                                                  €1.97i.e. €1.64 excl. VAT
                                                                  Male Male Cast Iron Reduced Nipple - Industrial Gas Plumbing FittingMale Male Cast Iron Reduced Nipple - Industrial Gas Plumbing Fitting
                                                                      €2.27i.e. €1.89 excl. VAT
                                                                      Male Male Cast Iron Reduced Nipple - Industrial Gas Plumbing FittingMale Male Cast Iron Reduced Nipple - Industrial Gas Plumbing Fitting
                                                                          €2.27i.e. €1.89 excl. VAT
                                                                          Male Male Cast Iron Reduced Nipple - Industrial Gas Plumbing FittingMale Male Cast Iron Reduced Nipple - Industrial Gas Plumbing Fitting
                                                                              Malleable Cast Iron Fittings with Black Core | EN 10242
                                                                              This malleable cast iron male-to-male black core scale nipple is the ideal connection solution for long-lasting installations in the distribution of a variety of fluids, including water, gas, steam and HVAC systems. Made of EN-GJMB-350-10, it ensures robustness and reliability for professionals. Designed according to EN 10242 and ISO 49 standards, it guarantees impeccable quality. The ISO...
                                                                              €2.27i.e. €1.89 excl. VAT
                                                                              Mixed items
                                                                              Male Male Cast Iron Reduced Nipple - Industrial Gas Plumbing FittingMale Male Cast Iron Reduced Nipple - Industrial Gas Plumbing Fitting
                                                                                  Malleable Cast Iron Fittings with Black Core | EN 10242
                                                                                  This malleable cast iron male-to-male black core scale nipple is the ideal connection solution for long-lasting installations in the distribution of a variety of fluids, including water, gas, steam and HVAC systems. Made of EN-GJMB-350-10, it ensures robustness and reliability for professionals. Designed according to EN 10242 and ISO 49 standards, it guarantees impeccable quality. The ISO...
                                                                                  Mixed items
                                                                                  €2.27i.e. €1.89 excl. VAT
                                                                                  Clapet à battant inox 316 horizontal PN16Horizontal swing check valve stainless steel 316 PN16
                                                                                      €41.08i.e. €34.23 excl. VAT
                                                                                      Clapet à battant inox 316 horizontal PN16Horizontal swing check valve stainless steel 316 PN16
                                                                                          €41.08i.e. €34.23 excl. VAT
                                                                                          Clapet à battant inox 316 horizontal PN16Horizontal swing check valve stainless steel 316 PN16
                                                                                              PN16 horizontal stainless steel flap , metal seat
                                                                                              €41.08i.e. €34.23 excl. VAT
                                                                                              Mixed items
                                                                                              Clapet à battant inox 316 horizontal PN16Horizontal swing check valve stainless steel 316 PN16
                                                                                                  PN16 horizontal stainless steel flap , metal seat
                                                                                                  Mixed items
                                                                                                  €41.08i.e. €34.23 excl. VAT
                                                                                                  Clapet de pied crépine en laiton - montage vertical PN16Brass crepine foot valve - vertical mounting PN16
                                                                                                      €26.56i.e. €22.13 excl. VAT
                                                                                                      Clapet de pied crépine en laiton - montage vertical PN16Brass crepine foot valve - vertical mounting PN16
                                                                                                          €26.56i.e. €22.13 excl. VAT
                                                                                                          Clapet de pied crépine en laiton - montage vertical PN16Brass crepine foot valve - vertical mounting PN16
                                                                                                              Brass crepine foot valve - vertical mounting PN16
                                                                                                              €26.56i.e. €22.13 excl. VAT
                                                                                                              Mixed items
                                                                                                              Clapet de pied crépine en laiton - montage vertical PN16Brass crepine foot valve - vertical mounting PN16
                                                                                                                  Brass crepine foot valve - vertical mounting PN16
                                                                                                                  Mixed items
                                                                                                                  €26.56i.e. €22.13 excl. VAT
                                                                                                                  Clapet retenue toutes positions laiton "Europa"
                                                                                                                      €19.43i.e. €16.19 excl. VAT
                                                                                                                      Clapet retenue toutes positions laiton "Europa"
                                                                                                                          €19.43i.e. €16.19 excl. VAT
                                                                                                                          Clapet retenue toutes positions laiton "Europa"
                                                                                                                              Valve retained all positions brass "Europa" with brass body for industrial, pneumatic and hydraulic installations
                                                                                                                              €19.43i.e. €16.19 excl. VAT
                                                                                                                              Mixed items
                                                                                                                              Clapet retenue toutes positions laiton "Europa"
                                                                                                                                  Valve retained all positions brass "Europa" with brass body for industrial, pneumatic and hydraulic installations
                                                                                                                                  Mixed items
                                                                                                                                  €19.43i.e. €16.19 excl. VAT
                                                                                                                                  ISO 228-1 Divisional Water Meter | Hot Water R80 | PN16Divisional Hot Water Meter | Unique Spray Brass | 90°C
                                                                                                                                      €90.12i.e. €75.10 excl. VAT
                                                                                                                                      ISO 228-1 Divisional Water Meter | Hot Water R80 | PN16Divisional Hot Water Meter | Unique Spray Brass | 90°C
                                                                                                                                          €90.12i.e. €75.10 excl. VAT
                                                                                                                                          ISO 228-1 Divisional Water Meter | Hot Water R80 | PN16Divisional Hot Water Meter | Unique Spray Brass | 90°C
                                                                                                                                              The single brass jet divisional water meter is the reference instrument for individual hot water metering (0/+90°C). MID certified and protected against magnetic fraud, it offers R80 accuracy in horizontal and high installation flexibility (U0D0). Its 360° rotatable dry dial makes it easy to...
                                                                                                                                              €90.12i.e. €75.10 excl. VAT
                                                                                                                                              Mixed items
                                                                                                                                              ISO 228-1 Divisional Water Meter | Hot Water R80 | PN16Divisional Hot Water Meter | Unique Spray Brass | 90°C
                                                                                                                                                  The single brass jet divisional water meter is the reference instrument for individual hot water metering (0/+90°C). MID certified and protected against magnetic fraud, it offers R80 accuracy in horizontal and high installation flexibility (U0D0). Its 360° rotatable dry dial makes it easy to...
                                                                                                                                                  Mixed items
                                                                                                                                                  €90.12i.e. €75.10 excl. VAT
                                                                                                                                                  Boule inox pour robinet flotteur à tige plate
                                                                                                                                                      €159.40i.e. €132.84 excl. VAT
                                                                                                                                                      Boule inox pour robinet flotteur à tige plate
                                                                                                                                                          €159.40i.e. €132.84 excl. VAT
                                                                                                                                                          Boule inox pour robinet flotteur à tige plate
                                                                                                                                                              Stainless ball for flat-stemmed float faucet. Suitable for the float faucet ref. 913 3/4" to 4".
                                                                                                                                                              €159.40i.e. €132.84 excl. VAT
                                                                                                                                                              Mixed items
                                                                                                                                                              Boule inox pour robinet flotteur à tige plate
                                                                                                                                                                  Stainless ball for flat-stemmed float faucet. Suitable for the float faucet ref. 913 3/4" to 4".
                                                                                                                                                                  Mixed items
                                                                                                                                                                  €159.40i.e. €132.84 excl. VAT
                                                                                                                                                                  Réducteur de pression à piston 25 bars - connexion manomètre
                                                                                                                                                                      €77.04i.e. €64.20 excl. VAT
                                                                                                                                                                      Réducteur de pression à piston 25 bars - connexion manomètre
                                                                                                                                                                          €77.04i.e. €64.20 excl. VAT
                                                                                                                                                                          Réducteur de pression à piston 25 bars - connexion manomètre
                                                                                                                                                                              Adjustable piston reducer. Iso 228-1 "Gas" female connection (BSPP). Indicator of the direction of fluid on body. Disassembly possible for maintenance.
                                                                                                                                                                              €77.04i.e. €64.20 excl. VAT
                                                                                                                                                                              Mixed items
                                                                                                                                                                              Réducteur de pression à piston 25 bars - connexion manomètre
                                                                                                                                                                                  Adjustable piston reducer. Iso 228-1 "Gas" female connection (BSPP). Indicator of the direction of fluid on body. Disassembly possible for maintenance.
                                                                                                                                                                                  Mixed items
                                                                                                                                                                                  €77.04i.e. €64.20 excl. VAT
                                                                                                                                                                                  Female/Female Brass Elbow 2090 - 90° Fitting PN10 BarFemale/Female Brass Elbow
                                                                                                                                                                                      €3.20i.e. €2.66 excl. VAT
                                                                                                                                                                                      Female/Female Brass Elbow 2090 - 90° Fitting PN10 BarFemale/Female Brass Elbow
                                                                                                                                                                                          €3.20i.e. €2.66 excl. VAT
                                                                                                                                                                                          Female/Female Brass Elbow 2090 - 90° Fitting PN10 BarFemale/Female Brass Elbow
                                                                                                                                                                                              Screw-on brass fittings
                                                                                                                                                                                              Female/Female Brass Elbow Reference 2090 - 90° elbow fitting specially designed for your general plumbing installations. Made from professional-grade forged and machined brass, this fitting offers optimal resistance up to PN 10 Bar . Compatible with "G" ISO 228-1 (BSPP) gas connection , it perfectly suits the...
                                                                                                                                                                                              €3.20i.e. €2.66 excl. VAT
                                                                                                                                                                                              Mixed items
                                                                                                                                                                                              Female/Female Brass Elbow 2090 - 90° Fitting PN10 BarFemale/Female Brass Elbow
                                                                                                                                                                                                  Screw-on brass fittings
                                                                                                                                                                                                  Female/Female Brass Elbow Reference 2090 - 90° elbow fitting specially designed for your general plumbing installations. Made from professional-grade forged and machined brass, this fitting offers optimal resistance up to PN 10 Bar . Compatible with "G" ISO 228-1 (BSPP) gas connection , it perfectly suits the...
                                                                                                                                                                                                  Mixed items
                                                                                                                                                                                                  €3.20i.e. €2.66 excl. VAT