Above ground Perfect Pool Liners Round 5.5 x 1.37 (18 x 54) Special OrderUpgrade your backyard oasis with the Above Ground Perfect Pool Liners Round, a heavyduty liner crafted for round pools. Sized to fit an 18' diameter and 54" height, this liner spans 5. 5 meters by 1. 37 meters and delivers a precise, secure fit that helps keep water leakage and wear to a minimum. As a Special Order item, its available in three appealing finishes to match your space and style: Sky blue, Dark Blue Green, or Blue Pattern. Each option is