50 x 15mm Polyplumb PP6415 pipe inserts / sleeves. Polypipe liners /stiffeners x
50 x 15mm Polyplumb PP6415 pipe inserts /sleeves. Polyfit plastic stiffeners. Part number is PP6415. MDPE Water Pipe Fittings. Brass Compression Fittings. Suitable for grey and whitePolypipe pipe. Will also fit Hep2O pipe.