WEBAmazon.com: Inground Pool Covers. 1-16 of over 1,000 results for "inground pool covers" Results. Check each product page for other buying options. Overall Pick. 20-Ft x 40-Ft Pool Cover for Inground Pools - Rectangle Winter Pool Cover for Inground Pools, Extra Thick Material and Durable Design, Cold and UV-Resistance, Easy Installation, …