Wine Making Home Brew Tool One-way Water Seal Beer Fermentation Exhaust Twin Bubble Valve Air Lock

Label:Yes Package Include:1 pcs Color: Transparent Diameter: 1.8cm Shape:S-shape Material: Plastic S-Shape Air Lock Twin Bubble Grommet Homebrew Beer Fermentation Wine Making Application:Pure juice fermentation, such as white wine fermentation, red wine secondary fermentation,preventing back-flush into the fermentation chamber during ambient temperature changes in room.This style airlock is typically used on fermenters up to 20 Gallon. Usage:Fill water into the exhaust valve, insert to the cover of the brew barrel or rubber plug on the top of the fermentation container, cover with the lid. Function:Isolate the air from the wine/beer, prevent flies flying into the wine/beer