Pipe Material PVC Poly Wrapped Ductile Ductile IronPolyvinyl Chloride (PVC) pressure pipe meeting the requirements of ANSI/AWWA C900, C905, or ASTM D2241 Ductile iron pipe in polyethylene encasement meeting the requirements of, and installed per ANSI/AWWA C105/A21.5 Ductile iron pipe meeting ANSI/AWWA C151/A21.51