Hot Tub Things® SPAPURITY Mineral Cartridge – Sundance® SunPurity Compatible

Our spa originally came with a 2 part filter. The top had a mineral core to it. I always liked the softness of the water and never had any trouble keeping it clear. As time went on the filter became hard to find. There are so many. I found one but it doesn't have the mineral core. So I bought this and it floats on top of our filter but under the filter cover. Seems to be working great!

I’m a sucker for new things to help balance the spa water. Bought this thinking it would make some miraculous difference, as they state. It doesn’t do anything! Don’t waste your money

Like everything about it nothing to say negative about it

MY POOL COMPANY RECOMMENDED THIS PRODUCT FOR MY JACCUZZI. NOW I HARDLY USE ANY CHEMICALS. MY WATER IS ALWAYS CRYSTAL CLEAR. I LOOKED THE PRODUCT UP ON AMAZON AND FOUND I COULD SAVE A LOT OF MONEY.

I put this in line with my hot tub filter. I no longer get that slime coating in the spa. I change it out 2x a year. I bought 6 spares.