Westlake Pipe & Fittings supports municipal applications with a range of innovative specialty PVC pipe & fittings products uniquely designed to meet the demands of modern installation challenges. Our Certa-Lok® products leverage a patented, segmented system that utilizes a corrosion-proof nylon spline aligned with and inserted into precision machined grooves to create a bi-directionally restrained joint that can be assembled in minutes. This joint restraint technology optimizes our AquaSpring® Certa-Lok® RJ & RJIB Pressure Pipe products for use in trenchless installations, making installation faster and easier.