Twin Bubble Air Lock Home Brew Beer Wine Mead with Snap-on Caps

 

100% Brand new and free shipping 

Material: plastic， rubber

Fit standard rubber drilled stoppers and rubber grommets with 10mm inner diameter opening.

Perfect for secondary fermentation.This airlock is filled partially with liquid

and it sticks in the top of a drilled stopper and into the top of the fermenter.

 

Features:

 

Small Rubber Gromemt: top diameter 22mm， bottom diameter 28mm， height 28mm， typically used on fementers of 3L