Cover a mid-size 28 ft. x 14 ft. residential inground or above-ground rectangular pool with an 8 mil blue PE solar pool cover that raises water temperature by 8 to 15 C (14 to 27 F) under sun and cuts evaporation by up to 95 percent. The 28 x 14 ft. (8.53 x 4.27 m) spec is a very common U.S. consumer-pool size, a real out-of-the-box fit that skips the trimming hassle for stock rectangular builds. The 8 mil thickness is the entry-level consumer spec, a budget-friendly path into solar pool-cover savings for homeowners testing the heat-retention benefits before committing to a top-tier 12 or 15 mil roll. The closed bubble structure floats on the water, sealing against evaporation, locking in the heat that the sun drops into the water during daylight, and keeping leaves, dust, and pollen out of the water through the off-hours, reducing vacuum time and shock-chlorine use. The trim-to-fit PE body cuts cleanly with scissors for step-out ladders, skimmer cutouts, and odd-corner pools, so the rectangular spec flexes to real installs. Heat retention overnight is the quieter savings: the cover cuts heat loss through the surface, lowering gas heater run time and extending the swim season on both ends. Use with chlorine under 2.5 ppm and pH above 7.2 for full material life. Net 14.47 lbs. (6.56 kg). Fit for 14 x 28 ft. inground and above-ground rectangular residential pools.