1. Compatibility:This pdm30 spa filter replaces for Pleatco PDM30; A quarest 461269, 361269, Dream Maker 461269, 461272, P61269; Clear choice CCP426; Filbur FC 9940, FC9940M, Stonehenge, Odyssey, Big EZ, EZ Spa, EZL, Fantasy. Crossover: 730L, 730S.(NOTE: This is a compatible spare part and the manufacturers' names and part numbers have been used for reference purposes only. is an independent brand) 2. Specifications: Oval spa filter for hot tub; Length: 9 3/4', Outer Diameter: Oval 6 1/4'x5 1/4', Top: 3' open; Bottom: 4 1/8'x3' Open Oval; Filtration Area: 30 sq. ft; 3. Robust Construction: This PDM30 hot tub filter is engineered with sturdy materials to withstand prolonged use 4. Effective Filtration: Adopt Trilobal Filtration Fabric. Designed to capture and remove dirt, debris, and contaminants from your spa water for a cleaner, more enjoyable experience