Drilled Universal Carboy Bung / Stopper White, rubber bung with longer taper for snugger fit and better seal. Lip prevents bung from falling into carboy. – Sunset Hydroponics and Home Brewing
Rubber Bung Solid (#8-9) - O'Connor's Home Brew Supply
Stopper Rubber 1 Hole. Btm 29Mm, Top 31Mm, Length 32Mm Pack Of 10