# 10 rubber stopper Airlock hole ›See more product details
Made of rubber., Creates an air-tight seal in mouth of carboy or fermenter., Essential piece of homebrew equipment., 1 5/8 bottom diameter., 1 15/16 top diameter.
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Fatima A.
Best international shipping I've ever tried. Worth every penny!
3 days ago
Vikram D.
The MOLLE sheath is of exceptional quality. Very happy with my purchase.
