Pipe Inserts

Polypipe Polyplumb pipe inserts and Polyplumb pipe support sleeves in a variety of sizes 15mm, 22mm, and 28mm. John Guest Speedfit plastic push fit pipe inserts & Speedfit superseal pipe inserts. John Guest Speedfit plastic push fit plumbing fittings available in 15mm, 22mm & 28mm and carry a 25 years guarantee. They are used when connecting speedfit pipe to a compression fitting.