Type A PVC conduit is a basic rigid nonmetallic raceway used for underground wiring installations. It is made from thick wall polyvinyl chloride (PVC) plastic. Rigid PVC provides strength and durability while buried underground. Resists crushing from soil and impacts. Highly chemical resistant PVC withstands corrosion from soils and impacts and provides long service life underground. Commonly used to encase underground electrical branch circuits, control wiring and smaller telecom installations between boxes.