AquaChek TruTest Refill Test Strips - Digital Test Strip Reader Refill Strips - for Pool and Spa Water Testing - for Free Bromine, Free Chlorine, pH, and Total Alkalinity - 50 Strips

The quick, easy way to test pool water! No more vials, reagents and messy drops. Simply dip the strip in your pool or spa, and then use your handy TruTest Digital Test Strip Reader to read the results. No visual color matching required €“ great if you are color blind! Eliminate the guesswork with these handy digital test strips!