POOLPUREC-6430 Spa Filter Replaces Watkins 31489, Pleatco PWK30, Filbur FC-3915, P/N0969601, 71825, 73178, 73250, 30 sq. ft. Hot Spring Spa Filter 4 PACK

These appear to be well made for the money, and are a perfect fit on my 2010 Hotspring Grandee. Filtration is at least as good as the OEM Tri-X filters, and flow seems to be slightly better. My original Tri-X ceramic filters lasted almost 10 years... Wait, what!?!? You read that correctly, 10 years! I was religious about chemicals, maintenance and refills. Even at the point I removed them from usage, the Tri-X filter material was still in good shape, but the end caps were deterioriating to the point where they could no longer be used. Pretty impressive kit, but they ought to be for 3X the price! By my logic, if these last 3 years or so with similar usage, I'll continue to recommend them. If not, I'll likely go back to the OEM Tri-X filters. Time will tell, but so far, so good. I'll be sure to update after a year or more. Stay tuned!

We spray our filters about once a week during heavy use. When they start turning brown it's time for fresh filters. You need to have clear filters like you do for a furnace! We replace filters about every 9 months due to teenage kids in and out. Keep an eye on them and hot tub maintenance so that your hot tub runs well. We've had our hot tub about 15 years with few issues. Ours auto shuts off everything (heat and all) if the filters aren't clear, so winter time is an important time to keep them clean.

They filter the water for less than the name brands.

Great product and price

Well made fits my spa . Might go ceramic some day

Great filterson time and great conditions

Product shipped quickly and was a perfect match

Was exactly what I wanted