Universal Carboy Cap
White carboy cap with two removable ports for airlocks, racking canes, or immersion heaters.
Fits 11L and 23L PET and glass carboys
Two removable port caps for flexible fitment
Smaller port: accepts 5/16" (approx. 8mm) tubing
Larger port: accepts 3/8" (approx. 9.5mm) tubing