Small enough to be the partner you want; large enough to be the partner you need. We are Polyethylene Pipe Specialists. Atkore United Poly Systems manufactures High and Medium Density Polyethylene Pipe for Renewables, Power and Communications, Energy and Water Infrastructure markets. Our pipe size ranges from 3/4″ to 24″ IPS, 4″ to 26″ DIPS and 3/4" to 2" CTS All of our products are made in the USA at multiple manufacturing facilities nationwide. Atkore United Poly Systems can provide quick delivery to a majority of the U.S. market. We have a wide selection of High and Medium density PE products ready to ship today. Visit the Quote page on our website for ordering details. CALL NOW: 417-708-9887