RITE-SIZE BONDED FILTER SLEEVE, Specially designed to prolong the life of filter media by reducing the accumulation of waste and dirt particles, For best result rinse and replace sleeve monthly, , UPC : 047431011434, Size : 3 PACK, Length : 0, 979, Width : 0, 729, Height : 0, 937, Product Type : Aquatics - Filter Media / Filter Inserts, Shipping Dimensions: 0, 979x0, 729x0, 937 SKU: BC009459