Aquacheck 4-1 Chlorine Test Strips
4 in 1 Chlorine Test Strips
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Aquacheck 4 in 1 chlorine test strips. These strips test; Free Chlorine, PH, ALkalinity, and Cyanuric Acie (chlorine stabilizer)
Simple and easy to use just dip them in the water for 2 seconds, pull out of water slowly and hold out straight for 15 seconds then match up the colors on the back of the bottle.