Swimline Deluxe 30' x 50' Rectangle In Ground Winter Pool Cover, 5' Overlap, Blue/Black | CO83555R FS2005 filter requires 7 full grids

filter requires 7 full grids + 1 partial grid (this item)

Can be used with all filter medias

The Unicel PG-1905 is a single partial DE filter grid engineered for 60 square foot DE filter systems

Switchless

Swimline Deluxe 30' x 50' Rectangle In Ground Winter Pool Cover, 5' Overlap, Blue/Black | CO83555R FS2005 filter requires 7 full gridsSwimline Deluxe Winter Cover is made of extra strong polyethylene material with double stitching that allows it to hold up in even the harshest of winters. A large 5 ft. overlap allows for installation on virtually any above ground pool. Installation is a breeze with the included cable and ratchet and the integrated metallic grommets. Features and Benefits: Complete rip proof patented technology 15 year pro rated warranty polyethylene material with