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a Lactobacillus culture
if you ordered the GERT on your PreSeason Tank then you can replace the Thermowell with this Sample Valve
Example image shows 3/4" solenoid filer
refillable sleeve junction PH electrode with a BNC connector
the traditional white airlock (on Italian Tanks) or the black screw plastic screw fitting (on our Speidel tanks) is replaced with our white tank connection fitting
Replacement Electrode for Milwaukee MW151 MAX Bench Meter itemID-9127 a Lactobacillus cultureDouble Junction, refillable glass electrode with BNC connector and 1m cable. Replacement for the electrode that is included with the Milwaukee MW151 MAX pH ORP Temp Logging Bench Meter. The electrode is the consumable portion of the pH meter which actually makes the measurement. All pH electrodes wear out over time and must be replaced. If your meter is having trouble calibrating or the reading drifts then a bad electrode is the likely culprit.