2 x Demijohn Airlock and Bung Set, Bubbler Air Lock for Home Brewing, Essential Equipment for Wine Making and Cider Making

Perfect for brewing. Simple but effective. Size fits well into brew cylinder. Good quality plastic.

Good quality, good price. The item arrived on time and was well packaged.

Nice stuff, just wouldn't be bad if required diameter for a hole is mentioned

Excellent. Most satisfactorily shaped airlock. Prefer these to any others.

Perfect

Nice packaging but bubbler will not bubble. It has completely locked in the carbon dioxde and the air. The red lid is on so tight that nothing has can enter or escape. Because of the tightness the offgas would have to be at such a pressure to push the water aside, so now it leaks air in through the bucket seal instead which is wrong. I thought it was good value for money but now I found out they don't actually work for their main purpose I say no. I went to a local brewer shop and bought some decent breathers and my mead is fermenting properly now. Avoid these.

These arrived the very next day

I much prefer the silicon bungs to rubber ones.