Intex 2500 GPH Swimming Pool Replacement Filter Pump 2,500-gallon filter pump for Intex above-ground pools Fits Intex Wet Set Krystal Clear models 51, 520, 520R, 58621, 56631, and 56633 Can also be used with pools that have 1-1/2-inch filter hose connections and use hose clamps Includes hoses Double insulated to keep pool water clean