JNW Direct Hot Tub Test Strips - 100 Tests, pH 7.2-7.6, Chlorine, Bromine, Hardness & More - 6-1 Pack - JNW Direct

I ordered these test strips because of the great description they were given. Their performance doesn't even come close. I only use chlorine in my spa, yet I continue to get bromine readings on the test strip. They do not accurately reflect the chlorine level in the water nor do they accurately report the pH. Their app is also pathetic. These strips have caused me to have more problems with the spa water than I would have using another brand of test strips.

Good for daily use. Don’t buy more than one pot per year. They deteriorate

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

ok, probably won't buy these again

works as designed