21×41 Ft. Oval Above Ground Pool Winter Pool Cover Delivers Value, ProtectionDouble stitched borders and a durable polyethylene material make this winter cover effective and long lastingAn 8×6 filament scrim that is tightly woven adds toughness and longevityStitching resists separating and tearing even in harsh winter windsThe winter cover easily and tightly cinches to your oval pool with the included vinyl-coated braided steel cable and winchCable runs through rust-proof aluminum grommets Winter cover is protected from UV rays; it won?t fade or disintegrateBlack underside to the cover works to prevent algae growth when air temps rise and pool chemicals are depletedHandy cover clips (sold separately) help keep the wind out and your cover on
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