Heavy wall conduit in gray color, features PVC construction for longer endurance. This schedule 40 conduit has trade size of 5-inches. This 20-ft long conduit has wall thickness of 0.258-Inch. It measures 5.047-Inch ID x 5.563-Inch OD and has belled end connection. Rigid non-metallic conduit is UL/ETL listed and meets NEMA TC-2 standards.