Cold Plunge Test Strips, 4-in-1 Water Quality Testing Kit, pH, Alkalinity, Hardness, Hydrogen Peroxide. Evaluate Your Cold Plunge Water Quality with A Single Strip. Smart QR Calculator to Help You

I recently tried the Caplide Cold Plunge Test Strips, and I’m impressed! They’re super easy to use and give a clear, accurate reading every time. I love how quickly they react, so I don’t have to wait to know the water quality before taking a plunge. The strips feel durable and precise, making maintaining my cold plunge routine simple and stress-free. Definitely a must-have for anyone serious about tracking their cold plunge water conditions!

Easy to use and keep track of the water quality in my cold plunge ….brrrrrr

This product is a game-changer for anyone with a cold plunge. Before using it, our water would go bad within a week, forcing us to drain and refill constantly. The online water calculator takes all the guesswork out and gives accurate results every time. For a small price, you get consistently clean, balanced water—and way less hassle. Highly recommend.

Seem to work ok for PH and alkalinity. When I dosed the pool with hydrogen peroxide, the test showed significantly less than expected, at 10PPM. Before I dosed again, I tested the strips with 5 drops of 3% peroxide in one 8 oz cup, 5 drops of 12% in a second cup, and a teaspoon of 12% in a third. All tests showed exactly the same results at around 10 ppm. My third test cup should have turned the pad black. Picture shows 2nd and 3rd test results. Don't trust these for your pool or spa testing.

I bought these mainly for the H202 test, but it doesn't work very well. The color changes significantly over the 60 seconds window in which the instructions say to monitor the results. The other items appear to be a more consistent test.