Wind River Spas told us about ozone filters and we were excited. We are very “green” and didn’t like the idea of sitting in chemicals. After researching some more on the internet, we ordered our tub. It was finished on time, delivered on time, and the guys showed us everything we needed to know about the maintenance. Rick has called and e-mailed several times to make sure we were happy with thew spa and to see if we had any questions. I would recommend Wind River Spas to anyone looking for a hot tub, especially if you want fewer chemicals in your life. We use it daily.