2 Pack Airlocks and Bored Rubber Bungs by Amazon.co.uk

• High Quality Rubber Bungs &s Airlock for Home Brewing

• Each pack contains 2 x Bored Rubber Bung & 2 x Bubbler Airlock

• About the Bungs - Standard sized, re-useable bored rubber bungs suitable for use with glass demi-johns. Not suitable for plastic demijohns. Designed to accommodate an airlock.Size: Height 32mm / Diameter (top) 30mm / Diameter (base) 27mm

• About the Airlocks - Simply add water to your Airlock and view bubbles as your beer or wine is fermenting.Fits bored rubber bungs and fermenting bin lids.