Silver-Line Plastics manufactures PVC Pipe for pressure and non-pressure water applications and for electrical conduit, as well as Polyethylene (PE) pipe for water/natural gas distribution. Located in Lawton, Okla., Silver-Line Plastics provides PVC (poly-vinyl chloride) products that include DWV, pressure pipe, sewer/drain, schedule 80 and well casing. The company offers a variety of PE products, such as Ultra Pure, Sil-O-Flex, Max-Flo and gas pipe. Silver-Line Plastics is a member of the Plastic Pipe and Fittings Association (PPFA), NSF International and ASTM International