Santevia Gravity System Fluoride Filter Combo Pack - 8-Month Supply hydroponics water tester Inspect the electotrode for damage

Inspect the electotrode for damage or scratches

and electrolyte balance

Carry one in your pocket at all times

wait for the stability indication to show a stable reading and then freeze the reading

pH Value: @25°C 6

Santevia Gravity System Fluoride Filter Combo Pack - 8-Month Supply hydroponics water tester Inspect the electotrode for damageSantevia Gravity System Fluoride Filter Combo Pack Complete Replacement Set Stay on top of your filter replacements and save with the Santevia Gravity System Fluoride Filter Combo Pack. This convenient bundle includes 2 fluoride filters plus 1 ceramic pre filter, giving you 8 months of clean, mineralized alkaline water with superior fluoride removal. What's Included in This Combo Pack 2x Fluoride Filters (4 months each = 8 month supply) 1x Ceramic Pre