Installed instead of fermentation tubes for heavy fermentations. Run the hose down into a bowl or bottle of Star San solution as a water trap.
Fits our fermentation pails and most other fermenters that use a standard 9 mm airlock.
When the fermentation has calmed down, the blow-off can be removed and replaced with a regular airlock.
The package includes:
1 pc John Guest angle 3/8" stem
1 m hose Tubingflex 3/8" (6.7 x 9.5 mm)