S Bubble Airlock for Home Wine Making and Beer Making

S-Shape Double Bubble Airlock for Wine Making and Beer Making

Transparent S-shaped Double Bubble Airlock with red dust cap

Size is about 16.5X 5cm

Fill the airlock up to half way with water  
Fits it in bung and is placed in hole on fermenter lid 
CO2 will escape, and stop air back in to contaminate your wine or beer.

The bubbling allows you to monitor the progress of your fermentation, showing the difference between the inside air pressure and outside air pressure.

Its design can also help prevent the liquid in the airlock from sucking back into the fermentater.

It is good Choice for Fermentation