Hayward SPX1600DB Biguanide Sanitizers Strainer Cover Replacement for Hayward Superpump Biguanide sanitizers strainer cover replacement Fits hayward superpump models sp1600x5, sp1605x7, sp1607x10, sp1608x10, sp1610x15, sp1611x15, sp1615x20, sp1616x20, sp1621x25 Not pressure testable Weighs 9.4-Pound