Stopper #2 – with 3/8 inch hole. Top diameter 0.83 inches (21 mm), bottom diameter 0.63 inches (15.8 mm), length 1 inch (25 mm).

BPA-free stopper made of food-grade materials. Injection molded TPE for superior consistency throughout. Perfect for use with carboys, as the material sticks well to glass and PET, even when wet.

Max. Temperature Rating: 158 F (70 C).