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Thanks Drewski.I decided to call the dealer myself... I just asked how much the filters were. I was on hold 5 minutes and the guy finally came back and asked for my name and number so someone could call me back with the info. I'm guessing this co sells a bunch of other stuff and very few spas.I looked on the net to see the next nearest dealer... called that number and it had been disconnected. Hmmm.