John Guest 12mm Pipe stop - excellent for blocking off 12mm pushfit pipe whilst working on your campervan system, or for drain valves which aren't always needed. These provide a water tight stopper for easy blocking of pipe and can be removed when required.
 
Designed to fit the 12mm John Guest Pushfit system, perfectly designed for campervan plumbing.
We sell the pipe and all other John guest fittings on our plumbing page.