Premium Above Ground Pool Liner - Heavy Duty Overlap Design for Round & Oval Pools (15', 18', 21', 24', 27', 28', 30', 33', 12'x24', 15'x24', 15'x25', 15'x30', 16'x32', 18'x33', 21'x41') - Stoney Creek Pattern - Perfect for Backyard Swimming Pool Installation & Maintenance