The DE3620 Filter Element is a premium replacement filter grid designed to maintain the efficiency and performance of Hayward Pro-Grid DE3620 filters. Built with high-quality materials, this grid offers superior filtration by capturing even the smallest particles, ensuring your pool water remains crystal clear. The 18” grid provides 36 square feet of coverage and fits seamlessly into both Pro-Grid Vertical DE3620 and MicroClear D.E. Filters. By holding Diatomaceous Earth powder and allowing water to flow through, this filter element plays a crucial role in keeping debris and contaminants out of your pool.