157700, Three Chamber Tester The Three-Chamber-Tester with an interchangeable colour comparison chart is a competitively priced unit for the determination of disinfectants and the pH value. Water Treatment pH value The pH value of pool & spa water shou (1 per EA )
157700, Three Chamber Tester The Three-Chamber-Tester with an interchangeable colour comparison chart is a competitively priced unit for the determination of disinfectants and the pH value. Water Treatment pH value The pH value of pool & spa water shou