Hanna (HI701-25) Free-Chlorine Refill for the Hanna HI701 Checker Handheld Colorimeter (Pack of 25) Type_Male Fixed Union Tee Double O-ring seals on every

Double O-ring seals on every cartridge ensure watertight connections

but a sudden jump indicates membrane failure or a loose connection in the system

threads accommodate low-flow applications under 1 GPM when paired with injector washer P/N 211207

and alkalis within standard concentration and temperature limits

Hanna (HI701-25) Free-Chlorine Refill for the Hanna HI701 Checker Handheld Colorimeter (Pack of 25) Type_Male Fixed Union Tee Double O-ring seals on everyHanna Instruments Reagent Refill Hanna HI701 25 Free Chlorine Reagent Pack Twenty five replacement reagents for the HI701 Checker colorimeter. Accurate free chlorine testing from 0. 00 to 2. 50 mg L without guessing at color charts. 25 Tests Per Pack 0. 01 mg L Resolution DPD Method WHY IT WORKS Consistent chemistry for reliable chlorine measurement DPD Reagent Method Uses the EPA approved DPD (N,N diethyl p phenylenediamine) method for free chlorine