HM Digital ASP-20 Calibration Solution Pack | pH 4, pH 7, EC/TDS & Storage (20 Packets) hydroponics pH Filter Life: 12 months or

Filter Life: 12 months or 2

Easy carrying handle

Rechargeable battery

Ceramic water filtration is one of the oldest and most reliable water purification technologies in use today

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HM Digital ASP-20 Calibration Solution Pack | pH 4, pH 7, EC/TDS & Storage (20 Packets) hydroponics pH Filter Life: 12 months orASP 20 20 pack Assorted Solutions 5 20 ml packets pH 4 buffer 5 20 ml packets pH 7 buffer 5 20 ml packets pH storage solution 5 20 ml packets EC TDS calibration solution Application: Aquaculture, Aquarium, Drinking Water, Food & Beverage, Hydroponics, Industrial, Pool Spa, Water Treatment, Window Cleaning Carwash