Hayward ProGrid D.E. Filter For In-Ground Swimming Pools. The Hayward ProGrid DE filters offer superior large-capacity performance, efficiency and water clarity. High-impact grid elements provide up-flow filtration and top-down backwashing for maximum efficiency. Durable, glass-reinforced copolymer construction ensures corrosion-free durability and withstand the elements. Heavy-duty, tamper-proof, one-piece clamp provides quick access to internal components without disturbing plumbing connections. High-capacity, rapid-release manual air relief valve bleeds air with a quick quarter turn of the lever.
- The Hayward ProGrid DE filters offer superior large-capacity performance, efficiency and water clarity
- High-impact grid elements provide up-flow filtration and top-down backwashing for maximum efficiency