Pool Mate 3521-4PM Heavy-Duty Blue Winter Pool Cover for Round Above Ground Swimming Pools, 21-ft. Round Pool

• Winter pool cover to be used with traditional above ground swimming pools - Solid material will not let water pass through
• Pool Size: 21 Foot Round - Cover Size: 25 Feet (includes overlap in total)
• Heavy-duty polyethylene material - All seams are heat sealed for better performance
• 4 foot overlap (Includes 4 feet of extra material beyond pool size, making this cover easier to install, included in cover size above) - Includes winch and cable, which should be used to secure the cover through the grommets

Product Description The Pool Mate Heavy-Duty Blue Winter Pool Cover will protect your pool from winter elements. This is a solid winter pool cover that will not allow water to pass through its material. The Pool Mate Heavy-Duty Blue Winter Pool Covers is constructed of heavy-duty polyethylene. All seams are heat sealed for better performance. The blue topside of this pool cover is coated to prevent UV damage. Please order by your pool size, as the overlap goes beyond the pool size listed. This cover includes a four-foot overlap. If you have a very large top rail, please consider a larger pool size. This cover should be able to comfortably float on the pool water without excessive stress. This cover is not meant to be used as a debris cover during the swimming season. This winter pool cover is intended to be used during the off-season. This cover is meant for traditional above ground pools with a traditional top rail. Includes a winch and cable that should be used to secure your pool cover through the grommets around the perimeter of the pool cover. For extra securing, cover clips and cover wrap (both sold separately) are suggested for pool closing. No other method of installation is recommended.. Safety Warning Always use this cover during the off-season only. Do not use as a debris cover during the swimming season. Ensure the cover floats comfortably on the pool water to avoid excessive stress. Clean with a mild household cleaner, rinse with water, and air dry. Do not use harsh chemicals or improper cleaning methods. Always follow the manufacturer's instructions for proper installation, use, and maintenance to prevent damage or accidents.