The Hayward DEX4800DS Partial DE Filter Grid Element is an essential component for Diatomaceous Earth (DE) filtration systems, designed to improve the efficiency of pool and spa water filtration. This filter grid element has a large surface area of 48 square feet and a diameter of 24 inches, providing ample coverage for catching tiny debris and pollutants. This grid element, made of r... https://www.usapoolshop.com/dex4800ds-hayward-partial-de-filter-grid-element