This John Guest locking clip kit suits 12mm push-fit fittings and keeps pipe locked in when you tackle rough roads and long hauls. Each clip measures about 4 cm across and works as a simple add-on to standard 12mm caravan water setups. With 50 clips in the pack, you can sort a full van fit-out or keep a stack of spares in the toolbox for trackside fixes.

The red clips are shaped to snap over the 12mm collet on John Guest fittings and hold the pipe in place under pump pressure. Each one is roughly 4 cm x 4 cm x 2 cm and weighs about 20 grams, so the whole pack stays light in the drawer. A 1 year warranty backs the gear, which suits typical caravan and RV plumbing layouts across fresh water lines.

• John Guest 12mm red push-on locking clips
• Suits 12mm John Guest push-fit fittings
• Helps keep pipe seated under pump pressure
• Individual clip dimensions: 4cm x 4cm x 2cm
• Individual clip weight: 20 grams
• Supplied in bulk 50 piece pack
• Bright red colour aids quick visual checks
• Compact size suits tight caravan cabinetry
• Ideal for caravan and RV fresh water plumbing
• Backed by a 1 year warranty

Q: Are these clips only for 12mm John Guest fittings?

Yes, these locking clips are sized for 12mm John Guest-style push-fit fittings. The inner profile matches the 12mm collet used on this plumbing system. Using them on other sizes or brands may not hold correctly. For mixed plumbing, match the clip size to each fitting.

Q: Can I reuse a locking clip after removing it from a fitting?

Yes, the clips are reusable if they are not damaged or deformed. Slide the clip off the collet and check that the shape is still even and not cracked. If the clip still grips the fitting firmly it can go back into service. Replace any clip that feels loose or looks stressed.

Q: How many plumbing joints can one 50 pack cover?

One clip secures one fitting, so a 50 pack can cover up to 50 fittings. A typical small caravan water system may use fewer than 50 joints. Larger touring setups with extra tanks or filters will use more fittings. Keeping extra clips on hand helps with future changes or repairs.

Q: Where are these clips usually installed in a caravan water system?

These clips sit on the collet of each 12mm push-fit fitting wherever you want extra security. Common spots include pump outlets, tank connections and joints near moving hoses. Any area exposed to vibration or movement benefits from a locking clip. Fitting them across the whole line gives a consistent setup.