Floating Chlorine Tablet Dispenser with UV Coating Protection for Small Pools, Spas, & Hot Tubs - Holds 1" Bromine or Chlorine Tablets for Effective Sanitation - Hot Tub Chlorine Floater.

I like this much more than the shorter stouter cheaper floating dispensers that abound on Amazon, because it is much better engineered, sturdier and a few inches taller, so that it doesn’t float into the water intake at the filter basket of my 250 gallon spa, unlike the cheaper units invariably do, and this unit avoids getting stuck like in the rushing stream of pump intake water which causes the smaller cheaper units consume and dispense the chlorine tablets too quickly.It also has a much better adjustment mechanism to regulate the rate of chlorine dispensation than the cheaper ones do. You can insert as few as one tablet and adjust it to release at any rate a between no chlorine, dispensation, all the way up to quickly dispensing of several tablets at once, and anything in between. In other words you can get the adjustment just right for your spa. And being able to adjust the dispensation amount to a low volume makes it compatible with using IonRx copper-solution based (i.e. non-chlorine non-bromide) sanitizer, also on Amazon, which I successfully use to get away with much lower chlorine leveles to avoid chlorine irritating the skin, air passages and eyes, and recommend looking into that or any copper solution based water protector.This device has a threaded twist-on cap on the bottom, which is easy to use, as opposed to the top cap of the cheaper units whose lid tabs are hard to line-up with internal notches making them hard to secure the cap onto. Further, it was the ultimate failure of the cap notches in the smaller cheaper plastic unit I had that caused me to look for (and find) this better solution to the problem.

We’ve been using this for three months now. It’s easy to open, takes standard sized tablets and has been important in the upkeep of our spa. We have a larger spa but it keeps up with it just fine. Floats low enough that it doesn’t get caught in the lid, when in place.

Well, it definitely dispenses the bromine/chlorine, but as far as the ability to choose how much to dispense based on how much of your tablets to expose, I don't believe I've had any success. I've had the thing all the way open to most of the way closed and I get the same readings, and the tablets don't last any longer or less long based on how open or closed I have the unit.Positives: It does appear to be well made (even though Amazon was kind enough to send me a crushed one first) and I expect it to last a long time. The weight at the bottom is heavy and I've never found it on its side or upside down in the water, which used to happen frequently with the one I replaced, so I'm pleased I was able to solve that problem.

I have to admit that it is different looking than any other dispenser we have owned, but it definitely is a lot better made than any other dispenser.I was impressed with the quality.As far as we are concerned it works well and should last longer because of the thicker material it is made from.

Is perfect for keeping the spa chlorinated at the correct level and not needing to be messing with every day. Had to guess a bit to get the correct setting, but works great.

Perfect for our spa tub

I got this float that holds chlorine tablets for my hot tub being I have teenagers who are not the best at keeping up on adding chlorine .. it has been a lifesaver and makes it easier to be on top of the maintenance.

Long downcomer keeps floater out of filter intake on hot tub, heavy weight on bottom coated with plastic, can lock in precise dispense rate. Like it.