PTI features a full range of Corrugated HDPE pipe, culverts and fittings manufactured using eco-friendly materials and processes for Agricultrual, Recreational, Commercial, Industrial, and the Residential applications . The PTI brands include Corr-A-Flex: EVAC-HOSE, MPS and PIPE-R. Our Multi-Pipe System (MPS) consistes of specially engineered pipes combined and bundled to provide structured void areas eliminating the need for rock in drainfields and drainage applications. Our PTI PIPE-Reservoir (PIPE-R) is a patented unique system for harvesting and storing rainwater underground. For over 30 years the PTI name has stood for reasonable PRICE, QUALITY products , and PERSONAL SERVICE