HDPE Pipe Fittings HDPE (High-Density Polyethylene) pipe fittings are essential components in various piping systems, offering durability and resistance to corrosion. HDPE Pipe Fittings include HDPE elbow, HDPE tee, HDPE cross, HDPE reducer, HDPE stub end, steel flanges, Rubber gasket, Galvanized bolts, and nuts. Description HDPE (High-Density Polyethylene) pipe fittings are essential components in various piping systems, offering durability and resistance to corrosion. HDPE Pipe Fittings include HDPE elbow, HDPE tee, HDPE cross, HDPE reducer, HDPE stub end, steel flanges, Rubber gasket, Galvanized bolts, and nuts.