Pentair C1-270PC Diffuser Replacement Sta-Rite Inground Pool and Spa Pump Diffuser replacement Fits Pentair Sta-Rite 1-1/2-horsepower Dyna-Glas/Dyna-Max series inground pool and spa pump models MPFA6D, MPFA6E, MPFA6F Also fits Pentair Sta-Rite 1-horsepower Dyna-Pro/Dyna-Pro E inground pool and spa pump Measures 6-3/4-inch length by 6-3/4-inch width by 2-inch height