Health Metric4-Way Pool and Spa Test Strips | 50 ct | Swimming Pool Testing Strip Kit for Chlorine Alkalinity pH & Cyanuric Acid | Easy to Use Chemical Tester | Fast & Accurate Water Maintenance

The color difference between the values is extremely subtle basically rendering these useless. Also I have added over twice the needed amount of stabilizer for my pool and these test strips still show CYA at the first color value which is not possible if they were accurate. Chlorine is the only thing I trust at this point so I am off to buy some from a pool store locally now and see how bad I have messed my water up because of these junk strips.

Wanted to use this for testing between cycles of taking water to the pool store. The PH and Free Chlorine are fairly accurate. The Alkalinity is a bit off but still close to what the pool store reports. The cyanuric acid never registers even though the pool store lists 55 ppm (almost added too much because of this).Yes my PH is within range; was 8.0 to start with and is now down to 7.5. Chlorine is in the 1-3 range and alkalinity is 100. Cyanuric never registers above 0...

good product

Easy to use strips to check the pool for ph,free chlorine, total alkalinity And stabilizer

I like these better than the more expensive 5 way. Chlorine is the only thing I test for and these work great.

No waiting. No drops to put in. Exact colors for match.

Seem accurate and effective - easy to use

This will save me hard to get Chlorine.