Reddit reviews Pentair 188592 Quad D.E. Cartridge Style D.E. Pool Filter, 60 Square Foot, 120 GPM

Four large capacity cartridges provide maximum filter surface area for greater dirt-trapping capacity and longer periods between cleaningsUnique internal flow path ensures optimum filtration and backwashing efficiencyChemical resistant, fiberglass reinforced polypropylene tank for exceptional strength and long lifeEasily removable cartridge elements make maintenance fast and easyWater flows through the Quad D.E. so efficiently that your pump will use less energy; measures 22-inch length by 33-1/2-inch height by 22-inch width