The 17.5” x 24” Rectangular DE Grid is specifically designed for Anthony Apollo and Flowmaster pool and spa Diatomaceous Earth (D.E.) filters, providing excellent filtration performance. This durable grid offers 48 square feet of filtration and ensures that your pool water remains crystal clear by trapping even the smallest particles, down to 2-5 microns. Built with high-quality materials, it offers long-lasting durability and helps maintain optimal filter efficiency. This essential component helps improve water flow, reduces strain on the pool pump, and is an integral part of maintaining peak performance in pool filtration systems.