Insta-TEST®Pool and Spa Test Strips allows the user to just dip the strip into the water and receive accurate, instant results. The formula is designed for stable color development to allow adequate time for the user to match very distinct colors along with preventing cross-contamination between pads.
The only test strip with no required waiting period!
PopTop caps are easy to open and shut - guaranteed for 1,000+ openings.
The patented test strip vial has a molded desiccant liner, protecting the strips from moisture intrusion and eliminating loose desiccant bags.
Measures free chlorine or bromine on one test strip.