Universal Stopper Size #11-11.5 - Solid (SRS)
This solid universal demijohn stopper is a white rubber bung with a long taper for a snug fit and better seal. It also has a lip to prevent the bung from falling into the carboy.
Fits 54L Demi-John. 1 7/8" x 2 3/8"
Frequently purchased with an airlock.
Also available as a drilled universal large stopper.