Rigid polyvinyl chloride. Heavy wall for underground and exposed use in accordance with Article 347 of The National Electrical Code. Non-conductive and safe. Cuts with a hand saw. Cements together providing a moisture proof seal. Won’t rust or corrode. Conforms to WC-1094A, NEMA TC-2, and UI-651 standards. Gray finish. Schedule 40 adapter for adapting schedule 40/80 nonmetallic conduit to boxes, threaded fittings, and metallic systems. Male threads on one end, socket end on other.