FROG@Ease Floating Sanitizing System + Replacement SmartChlor Cartridge 3-Pack Plus Free Hot Tub Care Guide, Self-Regulating Hot Tub Sanitizer Bundle

These work very well, however they are also quite expensive. It is much cheaper to add the chemicals yourself, however for those that want easy, this is easy, and also make keeping chemical levels in balance. I used them for a long time, but now that I am retired I have the time to keep the chemicals in balance for a lot less cost.

Very easy to use and water stays clear and clean with very little work, just basic filter cleaning and shock. This takes the guess work out of it. Levels stay in the preferred zone and the water feels better. I’m going to be a customer as long as it continues to work.

We love the frog system for our hot tub! Takes out all the guesswork and daily testing. The only thing we will use anymore!

Super easy, keeps my spa fresh for about a month, and then I have to change out.

This system uses different chemicals vs regular spa treatments. It's is easy to set up, but the blue side will last about 4 months and the gray side about 4 weeks, depending on size of spa. We have a small one, about 175 gallons and we get about that level of life on the blue side and a bit longer on the gray side. So you have to test weekly and if a level starts to show low on the Frog test strip, either change a side or add extra chemical. For this reason, I dropped a star. Do not bring your water to a local pool or spa supply place as they don't understand the levels this Frog uses for good water. They will tell you to add more chlorine when it's not necessary. So use the test strips provided. Mine always shows a need for harder water, so not sure why the Frog doesn't help with that when it's on their test strip. In any case, it's not perfect and it is costly at about $35 a month when factoring the two sides of the Frog. But it is convient. Just keep extra gray and one blue on hand as they run down at different rates, and the Frog will tip to its side to indicate a change is needed. You can also control the rate chemicals are released by turning a slot on each side of the Frog. Larger spas require more slots to be open and will use product up faster.

Not even 24 hours after using and my water is perfect with the frog ease system! I have had my hot tub for 3 years and struggled to keep clear water. I was skeptical before purchasing but am very happy with the results.

Easy to use and keeps my hot tub running clean. No more do this and that, just pop it in the tub and let it do its thing!

I have the system on my new hot tub and I love how stable it is, how the water feels and it really does what it says. SO much easier than other systems. Really like it that it doesn't smell a lot and no strong chlorine smell. Easy to maintain, just make sure you have the right pH! that really matters!