Hydrion Chlorine Test Paper + Refill provides a simple, reliable and economical way to measure the concentration of free chlorine available in cleaning solutions. With suitable colors at a temperature of 10-50-100-200ppm, the test paper measures concentrations between 10-200ppm.
Each carton contains 10 kits, each consisting of a 15ft roll of test paper and a matching color chart, plus 1 additional refill roll. Provides about 2000 tests.
Exp Date: February 2022