Aquacheck Pro 5-Way Test Strips (Total Chlorine, Free Chlorine, Total Bromine, PH, Total Alkalinity) 100 test strips per bottle
Aquacheck are the industry standard for spa test strips. There's an easy to use color chart on the back of the bottle. The flip-top cap dispenses one strip at a time, making it quick and easy to grab a strip and start your test. This order comes with 1 bottle only despite the picture below showing two).