AquaChek Select Connect Kit Refill 541640 (50 count)

The AquaChek Select Connect Kit (541640) Refill is ideal for those who have already purchased the AquaChek Select kit and just need additional test strips.  Each 50-count refill bottle contains 7-in-1 test strips and a color chart for accurate results. Test your pool or spa water a minimum of twice a week for best results. Get precise and reliable results quickly and easily! Tests for: total hardness, total chlorine, total bromine, free chlorine, pH, total alkalinity, and Cyanuric acid.