ApplicationFor use on residential and commercial swimming pools and spasFeatures Durable two-piece tank housing constructed of rugged ABS thermoplastic Easy Access Posi-Ring closure Longer Cycles - Holds more dirt than all of the other cartridge filters in its class 2" Ports for increased capacity and performance Compact 12" Diameter Design Drain Plug Raised "INLET" port for longer cycles and easy plumbingSpecifications Filter Area: 150 sq. ft. Optimal Performance at this GPM: 75 - 112 Flow Rated at .375 - 1 GPM per sq. ft.: 56 - 150 Turnover Rate (Gallons): 6 Hr: 20000 - 54000, 8 Hr: 26000 - 72000, 10 Hr: 33000 - 90000 Tank Port Size: 2"Weight: 30 lb CatalogWater Heaters (114)Water Pumps and Tanks (66)Swimming Pool & Spa (105)Water Treatment (2)Plumbing Accessories (10)