Hayward SPX1600TRA Seal Assembly Replacement Kit for Hayward Superpump and MaxFlo Pump Seal assembly replacement kit Fits hayward superpump models sp1600x5, sp1605x7, sp1607x10, sp1608x10, sp1610x15, sp1611x15, sp1615x20, sp1616x20, sp1621x25 Also fits hayward maxflo pump models sp2800x5, sp2805x7, sp2807x10, sp2810x15, sp2815x20 Weighs 1.6-Pound