4-in-1 Test Strips

AquaChek Yellow 4-in-1 Test Strips provide a fast, accurate way to monitor your pool or spa water. With one dip and a 15-second color comparison, this strip tests for Free Chlorine, pH, Total Alkalinity, and Stabilizer (Cyanuric Acid)—covering the four most important parameters in a chlorine-sanitized pool. The flip-top bottle dispenses one strip at a time to keep the rest sealed and protected. Designed for ease of use and reliability, these test strips are a go-to tool for pool professionals and homeowners alike.

Tests: Free Chlorine, pH, Total Alkalinity, Cyanuric Acid

Strip Count: 50 strips per bottle

Test Time: ~15 seconds

pH Range: 6.2 to 8.4

Free Chlorine Range: 0 to 10 ppm

Total Alkalinity Range: 0 to 240 ppm

Cyanuric Acid (Stabilizer) Range: 0 to 300 ppm

Color Pads: High-contrast, no-bleed pads for easy comparison

Bottle: Flip-top design for one-strip dispensing and protection

Application: Pools and spas using chlorine sanitation

Ideal Use: Weekly testing and water balance checks