Review on Twin Bubble Airlock and Carboy Bung (Pack of 2): Superior Quality Fermentation Accessories for Home Brewing and Wine Making by Ryan Gordon

UPDATE: The problem with these bubblers was me, not the manufacturer. The corks CAN be reversed to fit my regular bottle (an empty 2 1/2 liter Everclear bottle). ho hmm Sometimes we just have to think outside the box. PREVIOUS POST: Disappointed as I thought these corks would fit regular glass bottles. They don't. It would be helpful for the seller to explicitly state to inexperienced winemakers on a tight budget that "this product is SPECIALLY SIZED FOR CHARCOAL BOTTLES ONLY AND WILL NOT BE SUITABLE FOR OTHER STANDARD BOTTLES".