Insta-Test Yellow 4-1 Test Strips now available from h2ofun
Insta-TEST® POOL 4 Plus pool & spa strips yellow now available from h2ofun. These test strips measures Free Chlorine 0-10 ppm, Total Alkalinity 0-240 ppm, pH 6.2-9.0, and Cyanuric Acid (Stabilizer) 0-250 ppm. 50 test strips, dip-n-read strip with instant results.
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