Swimline Deluxe 18' x 36' Rectangle In Ground Winter Pool Cover, 5' Overlap, Blue/Black, 8 Year Warranty | CO82341R C8409 The Polarshield Pro Strength 18'

The Polarshield Pro Strength 18' x 40' Rectangle Pool Cover is made of extra strong polyethylene sheeting woven with thick polyethylene stitching

Pro Tip: Verify fit using your existing cartridge's outer diameter (5 5/16") and length (17 13/16") before ordering

A professional favorite pool clarifier

The Unicel 4CH-23 is a 25 sq

cartridges working together (3 × 105 = 315 sq

Swimline Deluxe 18' x 36' Rectangle In Ground Winter Pool Cover, 5' Overlap, Blue/Black, 8 Year Warranty | CO82341R C8409 The Polarshield Pro Strength 18'Size: 18' x 36' Shape: Rectangle Color: Blue Black Pool Type: In Ground Swimline 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