The Insta-Test 4 pool & spa strip measures Free Chlorine 0-10 ppm (or Bromine 0-20 ppm), pH 6.2-8.4, Total Alkalinity 0-240 and Total Hardness 50-800 ppm. This test strip is a 1-Dip method designed to match the way strip users actually test water. Just dip and read to get truly instant results---only by Insta-TEST! No swirling or waiting times, the new Insta-TEST 1-Dip formula feature extremely stable color reactions without cross-contaminated pads.
50 strips per bottle
| INSTA-TEST 4 |
| Free Chlorine | Bromine | Alkalinity | pH | Total Hardness |
| 0, 0.5, 1, 3,
5, 10 ppm | 0, 1.5, 3, 6,
10, 20 ppm | 0, 40, 80, 120,
180, 240Â ppm | 6.2, 6.8, 7.2,
7.6, 8.0, 8.4 | 50, 100, 250,
450, 800 ppm |
Now with French, Spanish, and English instructions.
Click here to view all Water Testing Test Strips
Sold Individually - Case Pack 12
