PA81 Pool Filter Replaces Hayward C580E, CX580XRE, Ultral-A3, Unicel C-7483, Hayward SwimClear C3020, C3025, C3030, Filbur FC-1225, FC-6425,4 X 81 sq. ft. Filter Cartridge,L x OD: 19 5/8"x 7"4 Pack

【SPECIFICATIONS】Length: 19 5/8"; Outside Diameter: 7"; Top Open: 3"; Bottom Open: 3". Filtration Area: 81 Sq.ft; Filter Material: Trilobal Filtration Fabric.

【REPLACEMENT MODELS】TOREAD TRF-7483 filter compatible PA81, Unicel C-7483, Aladdin 18101, Baleen AK-60450, Darlly 70811, SD-00825, SD-00365. NOTE: This is a compatible spare part and the manufacturers' names and part numbers have been used for reference purposes only. TOREAD is an independent brand.

【REINFORCEMENT STRUCTURE】With 25% thicker filtration fabric, heavy chlorine resistant and break-resistant end caps and reinforced center support, the filter delivers high powered propulsion flow, and crystal clear water, providing you with a relaxed and healthy enjoyment.

【MORE EFFICIENT FILTRATION AREA】Uniformity and high-performance trilobal fabric has 21-40% higher capacity compared with common point-bond fabric. The trilobal shape of fabric fibers also helps catch particles, increases efficiency without the pressure drop penalty, and helps reduce filter cleaning frequency.

【EASY TO CLEAN】The Trilobal Fabric Structure filter material makes it easy to release impurities when cleaning the filter, the filter is like a new one after cleaning. It is recommended that you clean cartridges every 2 weeks to maximize your spa's performance.