Precision Laboratories Chlorine Test Strip (Pack of 3)

This 3-Pack of vials contains test strips which allow for the determination of total chlorine (available + bound chlorine) in solution. This product measures levels required by public health standards for sanitizing surfaces. The color changes from white to pale blue, to ever deeper blue in the presence of increasing concentrations of chlorine. 3 vials per pack with 100 strips per vial. Each test strip is 1/4" x 1-3/4" in size. These vials are packaged in a 4" x 6" ziplock bag.