IPP is a leading global manufacturer of HDPE fittings used in Waterworks and infrastructure, Metals & Mining, Oil & Energy, G ... eothermal, Landfill, Wastewater, and other industries. It is the originator of the patented Deltaflex Convoluted Backing Ring which is now an industry standard, as well as a manufacturer of HDPE fittings. Headquartered in San Antonio with manufacturing in San Antonio and worldwide. IPP markets and sells its products worldwide. read more