3 Piece Econo-Lock with Carboy Bung (Set of 2)
Basic plastic 3 piece airlock. Cylinder Lock is a type of airlock which serves one purpose: to let fermentation gas out and to keep air from reaching the beer or wine. Very durable and easy to clean! Remove top and fill to line with sanitizer solution.  Package contains 2 Econo-locks and 2 Universal Carboy Bungs