Pay in 4 interest-free payments of $6.65 Learn more
Ships within 48 hours · Estimated delivery Oct 17 - Oct 22
& Total Hardness - all on the same strip
No more counting drops or waiting for laboratory results
you can instantly read the results
Lead in Water 1-500 µg/L (ppb)
SenSafe® Free Chlorine Parameter_Chlorine Dioxide & Total Hardness - allCheck your Free Chlorine with Confidence using our SenSafe Free Chlorine Check. Featuring a patented indicator and design, make sure your Free Chlorine levels are where you want them to be. Contains 50 tests. No interference from Chloramines No bleach out at high concentrations Save money by having 2 different ranges in one bottle (using Method A or Method B). Method A: 0. 0, 1. 0, 2. 0, 3. 0, 4. 0, 5. 0, 6. 0, 7. 0 ppm Method B: 0. 00, 0. 05, 0. 10,
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