The John Guest 12mm Pipe Insert is an essential component for securing reliable connections in campervan, motorhome and caravan water systems. Designed for use with 12mm semi-rigid or plastic pipe, this insert reinforces the pipe wall to ensure a secure, leak-free push-fit connection when used with John Guest Speedfit fittings.Simple but crucial, the pipe insert prevents pipe distortion under pressure and helps maintain a long-lasting seal inside the fitting. It is particularly important in hot water systems where pipe expansion can occur, providing additional stability and durability in mobile and off-grid environments.Quick and easy to install, the insert simply pushes into the end of the pipe before connecting to your fitting — no tools required.Key Features Designed for 12mm pipe systems Compatible with John Guest Speedfit fittings Reinforces pipe for secure push-fit connections Helps prevent leaks and pipe distortion Suitable for hot and cold potable water systems Ideal for campervan, caravan & motorhome plumbing Typical Uses Fresh water plumbing in van conversions Hot water heater connections Water pump and accumulator installations General 12mm push-fit plumbing systems A small but vital component, the John Guest 12mm Pipe Insert ensures your campervan plumbing system remains safe, secure and professionally installed.
