Hayward SPX3021B 2-1/2 and 3-Horsepower Diffuser Replacement for Hayward Super Ii Pump Diffuser replacement Fits hayward super ii pump sp3000 series models sp3007(eeaz), sp3010(eeaz), sp3015(eeaz), sp3020(eeaz), sp3025(eeaz), sp3030(eeaz) Also fits hayward super ii pump sp3000x series models sp3005x7(az), sp3007x10(az), sp3010x15(az), sp3015x20(az), sp3020x25(az), sp3025x30(az) 2-1/2 and 3-horsepower Weighs 10-pound