Diffuser for 1-1/2, 2, 2-1/2 and 3 horsepower Super II pumps. Other Products Using This Part: Model Number Product Name SP3020X252AZ Super II 2-1/2 Horsepower Energy Efficient, Up-Rated, Dual Speed, In-ground Pool Pump. 230v SP302063 Super II 2 Horsepower, 3 Phase Full-Rate, In-ground Pool Pump. 230/460v SP302551 Super II 3 Horsepower In-ground Pool Pump. 50 Hertz, 220v. SP303063AZ Super II Energy Efficient, 3 Horsepower Up-Rated, In-ground Pool Pump. 230/460v SP3015EEAZ Super II Energy Efficient, 1-1/2 Horsepower Full-Rate, In-ground Pool Pump. 115/230v SP3020EEAZ Super II Energy Efficient, 2 Horsepower Full-Rate, In-ground Pool Pump. 230v SP3010X152AZ Super II 1-1/2 Horsepower Energy Efficient, Up-Rated, Dual Speed, In-ground Pool Pump. 230v SP3020X25AZ Super II 2-1/2 Horsepower Energy Efficient, Up-Rated, In-ground Pool Pump. 230v SP3025X30AZ Super II 3 Horsepower Energy Efficient, Up-Rated, In-ground Pool Pump. 230v SP3025EEAZ Super II Energy Efficient, 3 Horsepower Full-Rate, In-ground Pool Pump. 230v