Pool Mate 351221-4PM Heavy-Duty Blue Winter Pool Cover for Oval Above Ground Swimming Pools, 12 x 21-ft. Oval Pool
Brand: Pool Mate
Color: Blue
Winter pool cover to be used with traditional above ground swimming pools - Solid material will not let water pass through
Pool Size: 12 x 21 Foot Oval - Cover Size: 16 x 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
10 Year Warranty - Cover should be able to float loosely on the water, consider going up a pool size if you have large top rails - Ice equalizer pillow sold separately