TOREAD FS-2003 DE Filter Grids Replace Unicel FS-2003, PFS1836, Filbur FC-9530, Hayward Pro-Grid DE3620, DEX3600DA, MicroClear DE3600, L x W: 18″ x 11″(Full)/18″ x 9-3/4″(Partial), 36 Sq. SPECIFICATIONS: The DE Filter Grids set includes 7 full-grid and 1 partial-grid. Length: 18″; Width: 11″(full); Width: 9 3/4(partial); Material Area: 36 Sq. Ft; Filter Material: PET resin material. COMPATIBLE MODELS:DE Filter compatible Unicel FS-2003, PFS1836, Filbur FC-9530, Hayward Pro-Grid DE3620 (DEX3600DA), MicroClear DE3600 and MicroClear SS DE3600. NOTE: This is a compatible spare part and the manufacturers’ names and part numbers have been used for reference purposes only. POOLPURE is an independent brand. POWERFUL DIRT HOLDING CAPACITY: The DE grid frames are made from high-quality ABS material, which is significantly lighter while with a precision of 5 microns, which can remove hair, dust, sand, moss, and other fine particles, resulting in a crystal clear pool. SUPERIOR MATERIAL: Made from PET resin material, POOLPURE DE Filter Grids have excellent properties such as being non-toxic, odorless, anti-corrosion, mildew-proof, and wear-resistant. EFFORTLESS CLEANING: Uniformity and high-performance PET resin material make it easier to capture and release stains, so it’s easy for you to wash the filter after use. It is recommended that you clean the grids every 2 weeks depending on usage to maximize your pool’s performance. DURABLE & COST-EFFECTIVE: Featuring a PET resin material, our grids excels in capturing a large volume of contaminants. It’s also designed for easy cleaning and maintenance, ensuring longevity. Experience top-tier quality at an affordable price. Product Dimensions: 11 x 11 x 18 inches. Item Weight: 13.47 pounds. Item model number: FS-2003. And we will work with you to resolve it to your satisfaction.