HDPE Pipe Up to 4" HDPE Pipe Is Available With Good Finishing Inside & Outside both. FEATURES & BENEFITES: Materials Grades (PE 63, PE 80, PE 100), Light in weight and long life., Excellent flexibility and strength., No scales build up., Safe for portable water supply. APPLICATIONS: Portable water supply, Lift & Gravity Irrigation Systems, Sewerage pumping & effluent disposal system, Aggressive chemical / acids transportation, Gas distribution systems, Compressed air lines, Marine & underwater pipeline.