Santevia Gravity System Fluoride Filter Combo Pack - 8-Month Supply hydroponics water tester The Travel and Big Berkey®

The Travel and Big Berkey® use the 7

Factory Calibrated — Calibrated with 342 ppm NaCl solution

and electrolyte balance

Proper probe care extends the life of your MW102 PRO+ and keeps readings accurate:

Santevia Gravity System Fluoride Filter Combo Pack - 8-Month Supply hydroponics water tester The Travel and Big Berkey®Santevia 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