Introducing the TOREAD Pool and Spa filter, the ultimate replacement for your spa filter needs! Tested and certified by IAPMO against NSF/ANSI 50, this top-quality filter provides you with the safest and cleanest water possible for your pool or spa. Compatible with several models including PWW50P3 (NOT PWW50P4), Unicel 6CH-940, TRF-6CH-940, Aladdin 14510, Baleen AK-9019, 78902, SD-00031, SD-00710, PLE-051-9193, and PLE-051-9194, this filter has a filtration area of 45 sq. ft. With a reinforced structure featuring 25% thicker filtration fabric, heavy chlorine-resistant and break-resistant end caps, and a reinforced center support, the filter ensures high-powered propulsion flow and crystal clear water, providing you with a relaxed and healthy enjoyment.