SCV 4020IG Size: 40" x 20" Oval Features: -Air bubble solar cover. -Available in 32" x 16", 36" x 18" or 40" x 20" sizes. -Increase water temperature while reducing heat loss at night. -Sturdy welded seams for above ground and in-ground pools. -Fit non-standard size pools order next larger size- trim to fit.