Test the total bromine, free chlorine, ph and total alkalinity, 50 easy to use test strips. Easily keep a check on your pool or spa health with these 4-way testing strips. Test for pH levels, alkalinity, water hardness and chlorine content.
4-Way Test Strips for Swimming Pools and Hot Tubs.
Test for Free Chlorine, Alkalinity, pH levels and Total Water Hardness.
Ideal for salt users as these strips test for water hardness