【DIMENSIONS】- Bottom Diameter(small-end):44mm / 1.73";Top Diameter(big-end): 49mm / 1.93";Suitable for flask: 2000ml;Fit for hole: 44-49mm/1.73-1.93"
【HIGH QUALITY MATERIAL】- The airlock stopper is made of the food grade silicone;It features a healthier, environmental,anti-corrosion,waterproof and high wear resistance
【FEATURE】- Silicone plugs with holes are perfect for the common fermentation airlocks
【ADVANTAGE】- Provide a tight seal for the beer fermentation ,can be carried out a good isolation of the air for honey ,white wine, milk fermentation can prevent oxidation
【APPLICATION】- Airlock stopper is widely used, mainly for block glass ports, pipe mouths, fish tank openings, etc