3G Edition 3 Catalogue July 2026

John Guest Plastic Push-In - Fittings

This range of plastic push-in fittings provide a secure joint without the use of any tools making them quick and easy to fit. They can be used on nylon, plastic, calibrated copper or Bundy Tubes to carry air, water and many other liquids, except acids but not suitable for fuel.

We recommend the use of tube supports with nylon or plastic tubing. We do not advise the use of plastic push-in fittings on vehicle brake lines. Maximum working pressure: 10 bar. Minimum burst pressure: 25 bar. Temp: -0 to +60 C

Straight Connector

Stem Reducer

Stem Elbow

3G Part No (Singles)

Display Pack (Pkt 2)

Tube OD (mm)

Tube OD (mm)

3G Part No (Singles) BC2560

Display Pack (Pkt 2)

Tube OD (mm)

Stem (mm)

BC2500 BC2501 BC2502 BC2503 BC2505 BC2507 BC2509

4 5 6 8

3G71117 3G71118

6 8

4 6 8 8

6 8

BC2561 3G4891 BC2562 3G4892 BC2563 3G71116 BC2564 3G4894

10 12 12

10 12

10

15 Straight Reducer Connector

Elbow Connector

3G Part No (Singles)

Display Pack (Pkt 2)

Tube OD (mm)

Tube OD (mm)2

3G Part No (Singles)

Tube OD (mm)

BC2540 3G4895

6 8 8

4 4 6 4 6 8

BC2550 BC2551 BC2552 BC2553 BC2554 BC2555 BC2556

4 5 6 8

BC2545

BC2541 3G71115

BC2546

10 10 10 10 12

BC2544 3G4896 BC2542 3G4897

10 12 15

BC2543 BC2547

12

8

Equal Tee Connector

Straight Stud Adaptor

3G Part No (Singles)

Tube OD (mm)

3G Part No (Singles)

Tube OD (mm)

Thread Size (BSP)

BC2520 BC2521 BC2522 BC2523 BC2524 BC2525 BC2526

4 5 6 8

7 - Air Brake BC2620 BC2621

8 8

1/4 3/8 1/4 3/8 1/2 3/8 1/2

BC2622 BC2623 BC2624 BC2625 BC2626

10 10 10 12 12

10 12 15

7.26 Part numbers and product codes of suppliers other than ‘3G’ are quoted for the cross reference purposes only and do not imply or constitute a binding agreement as to the manufacturing origin of the goods supplied.