Nature2

This completely self-contained Hot Tub Mineral Sanitizer by Nature2 is easy to install. With no moving parts, Nature 2 simply slips into your hot tub's filter...where it works as part of your spa's existing water circulation system to keep you hot tub water clean and bacteria free.  If your hot tub is equiped with an ozonator, the Nature2 Spa Mineral Sanitizer will greatly enhance it's performance.

Nature2 is EPA registered and can be used effectively for 4 months.  Best of all, it eliminates the need of constantly adding chlorine or bromine to the hot tub. After start-up, a small maintenance dose of non-chlorine shock is all you need. Unlike chlorine and bromine, the Nature2 sanitizer is unaffected by Spa temperatures.