Pleatco PCM100SV American Commander 100, Hayward Star-Clear 1 Designed for use in American Commander 100 Hayward Star Clear 1 Replaces: Unicel C 7499 and Filbur FC 0650 Pleatco advanced point bonded filtration fabric 100 square footage filtration Material weight: 4 ounces per square yard means more fibers per unit of area for better dirt trapping power