Made with a white high density polyethylene layer around a black polyethylene core to form a lightweight pipe with excellent beam stiffness. Unaffected by extended exposure to the sun's heat and ultraviolet radiation. Immune to freeze/thaw conditions andcontinuous subzero temperatures. Corrosion resistant to acids, alkalies, and salts. Will not rust. Safe, easy, efficient installations without breaking, splitting, or cracking. Long-term performance without costly maintenance or replacement. Constructed with bell-and-spigot ends for soil-tight joints. Features a smooth interior and exterior. Meets the requirements of ASTM F810. Applications: waste management absorption fields, golf course drainage, downspouts, sidewalk "culverts," irrigation.