Westlake Pipe & Fittings

Westlake Pipe & Fittings (formerly NAPCO/North American Pipe and LASCO Fittings) is one of North America's largest PVC pipe and fittings manufacturers, operating 23 facilities. A division of Westlake Corporation (HQ in Houston, Texas), it serves municipal water, sewer, plumbing, electrical, well, irrigation, and HVAC venting markets.