Guardian Filtration Products Spa Filter Cartridge 610-124-03 Three-Pack Replacement for Pleatco PWK30, Unicel C-6430, Filbur FC-3915

Good value for the money. They work great, much better then ceramic filters. They do the job of catching stuff from hot tub.

Hot Springs spas moved to a filter design which clogs easily and when the filters get clogged (especially the center one that's used when the spa is on stand-by), the heater shuts off. There's nothing more frustrating than expecting a nice hot soak only to find the logo flashing on the outside of the spa and the water barely warm. These filters don't clog and were actually the design Hot Springs used to use. Since changing the center filter to this design, I've not had an issue with the spa shutting down. They don't last forever, so I bought a three-pack to have back ups.

Cheaper than the hot tub store and just as good. They didn’t affect my chemical use.

They r a fraction on an inch shorter then my old filter. Unfortunately that filter is now obsolete.I had to put a casket on the top cover to get a snug fit

every few years I have to replace the filters. these seem to be as good as any other brand I have used

I bought my first set 2 years ago. My HotSprings tub came with 3 ceramic filters which might still be useable but we used a high pressure jet nozzle that broke some of the fins. New ceramic ones were really expensive and luckily were out of stock. So I purchased these as an interim solution. 2 years later they are still doing the job! They are holding up amazingly. I rinse them with a jet nozzle (with less pressure than before!) regularily and soak them in cleaner 2x a year. I already bought replacements to use when needed! I am more that satisfied and saved a lot of money!!

If you're looking for a generic filter for a Hot Springs Hot Spot SX 3 person spa this is the filter for you. It is the right length and diameter for my spa and it saved me $$$ by not having to drive 2 1/2 hours to spa dealer or having them send me one and charging high shipping fees. I am a happy customer.

It’s a great product just like the one I buy at the pool store problem is they don’t fit they are just a little bit too tall But they are sold as the same size I use and same litter just about a half inch too tall can’t put a lid on the filter