1 1/2" Airlock for Marchisio Tanks

Tank Airlock. To check which size you want, measure the inner diameter of your airlock.

TIP: From our experience we have found that the marble can get wet and then stick leaving potential for problems. We prefer to take the airlock cut the top portion off (marble side). Use the bottom half to attach to the lid and then put a standard rubber bung in the plastic hole. Two bonuses: no marble sticking problem and a way to taste your wine using a wine thief through the bung opening.