Rubber stopper drilled with 3/center hole to accommodate standard air locks. Top diameter 1 5/8' bottom diameter 1-3/8'.

Buy Now From Amazon

Product Review

Rubber stopper drilled with 3/center hole to accommodate standard air locks. Top diameter 1 5/8' bottom diameter 1-3/8'.

Similar Products

RiteBrew Rubber Stopper - Size 10 - Drilled1 X Drilled Rubber Stopper #7 (Set of 3)American Educational 7-880500-A Filtering Flask, Bomex Brand Clear Borosilicate Glass, 500mL CapacityTwin Bubble Airlock for Wine Making and Beer Making (Pack of 3)Rubber Stopper- Size 9.5- DrilledNo. 8.5 Drilled StopperAmerican Educational Clear Borosilicate Glass 1000mL Bomex Filtering FlaskDrilled Rubber Stopper #6 (Set of 3)Drilled Rubber Stopper #10 Set of 3United Scientific FG5340-1000 Borosilicate Glass Heavy Wall Filtering Flask, Bolt Neck with Tubulation, 1000ml Capacity