Hayward SPX5500K Strainer O-ring Replacement for Select Hayward Pump and Filter Strainer o-ring replacement Fits hayward power-flo matrix sp1590 pump series models sp1591, sp1592, sp1592ft, sp1593 Also fits hayward xstream cartridge and perflex extended cycle d.e filter models cc10093stufft, ec50c92sfttl, ec50c93stl Also compatible with Hayward Pro and VL series sand filter model S210T93SFT Weighs 2.4-pound