Swimline Super Deluxe 12' x 24' Oval Above Ground Winter Pool Cover, 4' Overlap, Silver/Black, 15 Year Warranty | PCO141628 Lifeguard & Rescue Equipment Sanitizer level should be below

Sanitizer level should be below 5ppm before adding this product

When laterals crack

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Swimline Super Deluxe 12' x 24' Oval Above Ground Winter Pool Cover, 4' Overlap, Silver/Black, 15 Year Warranty | PCO141628 Lifeguard & Rescue Equipment Sanitizer level should be belowSize: 12' x 24' Shape: Oval Color: Silver Black Pool Type: Above Ground The Polarshield Pro Strength 12' x 24' Oval Pool Cover is made of extra strong polyethylene sheeting woven with thick polyethylene stitching, which provides superior strength and durability. The winter cover is treated to provide maximum resistance to damaging ultraviolet rays to inhibit deterioration and increase longevity. Adding a Pro Strength winter pool cover will protect