• 15mm Pipe Inserts, 100 Pack: LavaPlumb pipe inserts for 15mm plastic plumbing pipe, supplied in a bulk trade pack of 100
• Required For Plastic Pipe: An insert must be fitted into the end of plastic pipe before it goes into a push fit or compression fitting
• Supports The Pipe Bore: The insert holds the pipe round and rigid, so the fitting's O-ring seals against a firm pipe wall and the grab ring can grip properly
• Helps Prevent Weeping Joints: Without an insert, plastic pipe can deform under the grip of the fitting, a common cause of joints that weep after commissioning
• For PB and PEX Barrier Pipe: Suitable for polybutylene and PEX barrier pipe on hot and cold water and central heating
• Trade Quantity: A pack of 100 keeps a supply on the van, so you are never short of the one part that stops a joint sealing

LavaPlumb Pushfit fittings are high-quality, WRAS-approved plumbing components designed for reliable performance in a wide range of applications. Made from durable Polybutylene (PB), these fittings are available in white and are offered in 15 mm and 22 mm sizes. They are compatible with PB, PEX, and copper pipes, making them perfect for hot and cold water supply systems and heating applications. These fittings feature a robust push-fit design that ensures quick, secure, and tool-free installations, while their innovative sealing mechanism includes a rubber O-ring and a stainless steel locking ring to provide a leak-proof seal and maximum reliability under pressure. LavaPlumb fittings are rated for a maximum pressure of 12 BAR at 20?, ensuring their durability for both domestic and commercial installations. Inserts must be used when connecting to barrier pipe to maintain the integrity of the system. With WRAS certification, these fittings meet UK water regulations, offering peace of mind and safety for every installation. Whether for new builds, renovations, or repairs, LavaPlumb Pushfit fittings deliver a versatile, long-lasting solution for modern plumbing needs.