Pool Test Strips 7-in-1, 200 Quick and Accurate Pool and Hot Tub Test Strips - Pool Water Testing Kit for Chlorine, Bromine, pH, Hardness, More - All in 1 Swimming Pool Test Strips by JNW

These test strips work perfectly and give quick, clear results. I used them to check the hardness of my tap water and my softener system — both readings were accurate and easy to interpret thanks to the color chart. The included eBook is a nice touch, explaining water hardness and maintenance tips in simple terms. With 150 strips, it’s an excellent value for ongoing testing.

Easy to use. Comes with instructions and it comes in a durable, water proof container that protects it from the stone. The quantity of strips you get for the price is also very good.

Does what it says though compared to my other test strips it's sometimes iffy with readings

Good value! Easy to ready! Fairly accurate readings! Good quality!

These are pretty good. Cheap brands tend to show levels are higher than they are, not showing the mid range of color. More expensive brands tend to have less tests per strip so you need to buy more types of tests. This ones quick and easy showing both total chlorine and available chlorine, bromine, alkalinity, ph, and hardness

Strip work well and easy to use.

As a pool owner, maintaining the right chemical balance felt like a constant battle. The JNW 7-in-1 Pool Test Strips have quickly become an essential part of my pool maintenance routine, and I can confidently say they live up to their "quick and accurate" promise. What sets these strips apart is their ability to test for seven crucial parameters in one go: Free Chlorine (yes mine is low in the pic), Total Chlorine, Bromine, pH, Total Alkalinity, Cyanuric Acid (CYA), and Total Hardness. No more feeling like a backyard scientist trying to decipher confusing liquid reagents. With JNW, it's a simple dip, wait a few seconds, and compare to the color chart on the bottle. The colors are vibrant and distinct, making interpretation straightforward even for beginners. I've found the results to be consistently reliable, giving me the confidence to make the necessary adjustments to my pool chemistry. The bottle contains 100 test strips, which is a generous supply that lasts a long time, even with frequent testing. This makes them not only effective but also a cost-effective solution compared to some other testing methods on the market. The packaging is also well-designed, keeping the strips dry and protected from light, which helps maintain their integrity. For anyone who wants to simplify their pool maintenance and get reliable readings without the hassle, the JNW 7-in-1 Pool Test Strips are an excellent investment. They've saved me time, frustration, and ultimately, helped me keep my pool sparkling clean and safe for swimming. Highly recommended!

It is inexpensive, fast, and easy. Accuracy is questionable though, and that is problematic for me. I think I have gotten mostly accurate readings over the last several uses, but I did not double check all the measurements to test if what I think is correct or not. I cannot rely on these tests strips for an accurate reading of free chlorine today. In the first picture, the color range result for the free chlorine test strip looks like 0-.5ppm. It is the third row (the text strip is longer than the bottle). If I solely relied on this reading, I would have added chlorine to increase the chlorine level. That would have been a mistake. Yesterday, the free chlorine reading in my pool was 3.44ppm, which is a little high. I live in South Florida, and it rained yesterday and overnight, so I expected a small drop in free chlorine, but not this. I tested the water, immediately after this test strip reading, with a digital meter, and the free chlorine reading is actually 2.51ppm. I bought this product hoping to lower the amount of times I use more expensive test strips for my digital meter. Unfortunately, that expectation was too high. I would only use this product in between tried and true testing for a red flag.