Replacement Dry Airlock for VC Tanks itemID-7157 This book details the wide

This book details the wide array of processes and ingredients in American sour beer production

Diaphragm pump is non-aerating & gentle on your wine

Yeast use the oxygen as a nutrient to produce healthy cell walls which helps to eliminate issues throughout fermentation

functional variation of the traditional glass wine thief

Replacement Dry Airlock for VC Tanks itemID-7157 This book details the wideDry airlock with marble for variable capacity tanks. Features a threaded shaft, and a plastic backnut with gasket that screws onto the underside. The outside dimension of the threads is 1 13 16 inch, it will fit a hole from 1 13 16 in to 2 1 4 in wide. The inside measurement of the airlock is 1 1 2 inch. Includes a marble with allows the release of gasses, but will not allow air into the tank. The marble is the sealing device, no water or other valves