Spa filter sticks – Pack of 3 mineral ion cartridges, grey, compatible with all models

The mineral ion cartridge provides you with clean, crystal-clear spa water without high levels of harsh chemicals. The active ingredient is zinc. (Inert ingredients include vitamin C, calcium sulfate, zeolite, attapulgite-type clay, zinc oxide, and magnesium oxide.) A difference you can see, feel, and smell, the mineral spa cartridge improves water quality. Easy to install and requiring minimal maintenance, it is compatible with most spa maintenance products. The mineral filter stick is a simple option for you to enjoy your relaxing spa experience with peace of mind. It uses controlled mineral ion release technology, automatically dissolving trace mineral elements in the water. The Mineral Stick works with your existing filtration system and is designed to fit most spa and hot tub filters. for a 24-hour flow rate.