1. POOL SAND FILTER COVER : We have a variety of sizes for you to choose from to fit most pool sand filters. (Please measure your pool sand filter before purchasing to ensure it is the correct size.) 2. DUSTPROOF AND WATERPROOF : Made of 500D oxford fabric, which provides effective dust protection for the pool sand filter pump, keeps it clean, and prevents water and dust from affecting its life. 3. ADJUSTABLE DRAWSTRING AND ZIP : Adjustable drawstring and zip on the bottom side, the drawstring can be adjusted for a better fit of the sand filter pump, the zip is designed to make it easy to connect the pipes when operating the sand filter pump. 4. EASY TO CLEAN : When the cover becomes dirty, just wash it with water or wipe it with a damp cloth. To prolong the life of the cover, please allow it to dry completely before putting it away. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store