SPA Mineral Stick, Hot Tub Stick with 4 Months Lifetime Universal for Hot Tub & Pool, Spa Mineral Cartridge Keeps Water Crystal Clear (Yellow,2-Pack)

Works as advertised.

I did a lot of research before I gave these a shot. We have a smaller spa, and I was concerned that I couldn’t be able to use these with the unique filter system we have but we were easily able to install them.All I can say is WOW our water is sooo crystal clear now. We empty and refill our spa every 90 days or so because we use it often but the water has never stayed this clear for so long. Also not sure if this is related but the pool chemistry is more balanced and I have to use less chemicals to balance it. I love this because one of the reasons I went to mineral sticks was so we could use less chemicals.Stock up. These are well worth the price and they are a great deal for what they will do for your spa. My local dealer wanted $50 for ONE stick. So glad we tried these.

Work great for our hot tub system.

This product has worked good for me. i DON'T HAVE TO DO AS MUCH WORK KEEPING ME HOT TUB BALANCED

Great price, great product for your hot tub!

Price is good compared to others. Product works as it should. Will buy again next time.

Between these and the salt and magnesium I put in the tub it keep it pretty darn clean. I shock it if it gets bad but otherwise I don’t use any other chemicals.

Very good filter the water has been clear and Smell free for 3 weeks now will definitely be buying more and I don’t write reviews for anything