AquaChek 511244-02 Yellow 4-In-1 Free Chlorine Test Strips (2 Pack)

Lots of test strips at a great price, keeps our hot tub water in good shape! Easy to read and gives you what you need to know within seconds.

Easy and simple to read and use but accuracy needs tweeking.

Work good and seem accurate

Like the convenience of fast delivery & good price.

We use these sticks i our hot tub. They seem to be easy to use and seem accurate. :)

This is one of the most accurate strip tests you can buy. It is fast, accurate, and easy to read. There is only one better and it is the pool master 6 way test which also includes total chlorine/bromine vs just free chlorine like this test.( it also includes better plastic strips not paper) Once your chlorine levels are in range just having free chlorine is fine. When you are low you need to see the total chlorine as well because free chlorine does not even show up and if it does it goes away fast. Knowing what the total chlorine level is helps accurately add more chlorine which this test does not have. The pool master test and this test are always identical they both are very accurate and repeatable. I prefer the pool master but I also like to have a bottle of these as well. It is much cheaper to use test strips often to to burn through all your chemicals guessing.*** I tried over 7 other brands of test strips all highly rated on Amazon. NONE of them were anything close to as good as the two mentioned above. They may of been good for half the test but the other half they were terrible. I have no need to buy any other test strips other than pool master 6 and this aqua check. Also having a test strip that is repeatable and accurate save so much time and money.** the biggest thing I learned with taming cloudy water is low chlorine levels are likely the cause as long as your ph is in range. I use to be so timid on adding too much chlorine but over time I realized how quickly it lowers and needs to be frequently added anyway. In a spa aim for 5ppm chlorine as it will only lower from there. Most strips say 3-5 some say 1-3 but that is for pools not spas. Good luck.

Good price for a good product!

I compared the test strips to the Taylor test kit and test results were accurate!!

These must be straight from the factory. Better expiation date than the store.

We’ve used the cheaper ones but the don’t give accurate results so just splash the cash and go for these. Great results all the time!

Produit de bonne qualité et arrivé rapidement

!HONEST REVIEW!Brought a house and got my hot tub serviced. I had got recommended this product from the service provider and never looked back, never had an issues!

Buon prodotto, facile da usare!