Pentair 25023-0160S D.E. Element Replacement Sta-Rite System 3 SMD-Series Modular Pool and Spa D.E. Filter D.E. element replacement Fits Pentair Sta-Rite System 3 SMD-Series modular pool and spa D.E. filters 60-square feet filtration area Measures 17-inch length by 27-1/2-inch height by 17-inch width