Insta Test 4plus Spa

The New "PLUS" 1-dip formula that allows the user to just dip the strip into the water and receive accurate, instant w availableresults. The new 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