This strainer cover o-ring is designed to use with Hayward ABG and Power-Flo Flooded Suction pump models SP1500 SP1510 SP1511 SP1550 SP1575 EP1500 SP1516 SP1540C and also compatible with Hayward Power-Flo LX Flooded Suction pump models SP1575LX SP1580 SP1580X15 SP1520UN EP1500LX SP1680 SP1540TL. Also fits Hayward Power-Flo II Self-Priming pump models SP1705 SP1710 SP1711 SP1720 SP1725 SP1750 SP1775 SP1780.Item Weight 4-Pound.