2-Pack Replacement Filters for Master Spas Eco Pur inner mineral cartridge by Clarathon

Good OEM replacement for 2004 Master Spa. Good fit and at lot less cos than the local spa store. Just two more as backups.

The cartridges were priced better than they can be purchased locally and they work just as hoped for the spa.

The filters arrive on time packaged well. I have to admit I was hesitant to use them at first since we have had such good luck with the ecopur filter; however, after 3 weeks the water is just as clear and these are significantly cheaper then the ecopur filters.

For the price they're OK, probably not as efficient compared to the OEM of our spa manufacture.r

Never had a hot tub before but these filters seem to do the trick well. No complaints yet!

So far so good , I really like this product !

I've used this in my spa for years and it works great

Works.