Profile: Charter Plastics, Inc. manufactures high-density polyethylene pipe for potable water, reclaimed water, sewer, geothermal, gas and irrigation & industrial applications. Our featured products include irrigation pipe, geothermal pipe, sewer pipe, natural gas pipe, potable water pipe, reclaimed water pipe and HDPE fusion equipment. Our PE 2406 yellow gas pipe is designed for safety and used extensively in natural gas service lines.