The probe is double junction allowing quick

000 gallons or 18 months (3-pack)

The SE600 combo probe eliminates the need for separate pH and conductivity probes

Does the 5-Stage Filter make water alkaline

Hanna Instruments Pool Line Free Chlorine Checker HC Reagents - HI7014-25 professional meter The probe is double junctionHI7014 25 Pool Line Free Chlorine Checker HC (Handheld Colorimeter) Reagents are high quality reagents for use with the HI7014 Pool Line Free Chlorine Checker HC. They are manufactured in our state of the art facility and clearly marked with the lot number and expiration date on each packet for traceability. Pre made reagents for ease of use Prepared with high purity chemicals Marked with expiration date and lot number for traceability HI7014 25 Pool