Insta-TEST POOL4 Plus Pool Spa Test Strips, Free Chlorine, Alkalinity, Cyanuric Acid (stabilizer) and pH - 3032, 4-way kit includes 50 tests
The Insta-TEST Pool4 swimming pool strips measures Free Chlorine 0 - 10 ppm, Total Alkalinity 0 - 240 ppm, pH 6.2 - 8.4 and Cyanuric Acid (Stabilizer) 0 to 250 ppm. This test strip is a dip-n-read strip with results in 2 seconds. The Insta-TEST Pool4 strip is the ideal pool strip allowing the you to measure the most important test factors for a swimming pool. The test strips are packaged in a waterproof yellow Pop Top bottle that protects the strips from moisture and UV light.Directions:Immerse strip for 2 secondsRemove with pads face up - do not shake off excess waterRead immediately