Emaux Zigzag Type GratingZigzag Type Grating is constructed of injection molded ABS and PVC, features a dome shape or flat cover. It can be mounted on the floor of both concrete and vinyl pool. FEATURES Emaux is a leading manufacturer in the swimming pool industry. We apply the best materials and rigorous quality control standard on the wide variety of durable & corrosion proof pool fittings (white goods) that provide years of long lasting performance.