Hayward SPX1600F5 Biguanide Sanitizers Motor Mounting Plate Replacement for Hayward Superpump Biguanide sanitizers motor mounting plate replacement Fits hayward superpump models sp1600x5, sp1605x7, sp1607x10, sp1608x10, sp1610x15, sp1611x15, sp1615x20, sp1616x20, sp1621x25 Weighs 8-pound