Union O-Ring Other Products Using This Part: 38528400 Maxim 1 Horsepower Pump. 38508400 Maxim 1 Horsepower Above-ground Pool Pump. Cord Not Included. 56344300 Warrior 44 gallon per minute D.E. filter system with 1 horsepower pump, hoses and 3ft cord. 56366100 Warrior 66 gallon per minute D.E. filter system with 1 horsepower pump, hoses and 3ft cord. 56408600 Warrior 44 gallon per minute D.E. filter 56408800 Warrior 88 gallon per minute D.E. filter 56408700 Warrior 66 gallon per minute D.E. filter 38508200 Maxim 1/2 Horsepower Pump. Cord Not Included. 38518400 Maxim 1 Horsepower Pump. Trap Not Included. 38508300 Maxim 3/4 Horsepower Above-ground Pool Pump. Cord Not Included.