#3 Silicone Bung / Stopper
Our #3 Silicone Stoppers provide a precision-molded, airtight seal for openings ranging from 18.2mm (bottom) to 23.1mm (top). Crafted in the USA from 100% food-grade silicone, these stoppers are non-porous and odorless, ensuring that they will not absorb flavors or leach chemicals into your samples or spirits. The Grab Ring option is specifically designed to allow for effortless removal from narrow-necked glassware without risking damage to the vessel.
Multiple Configurations: Available as a Solid stopper for airtight storage, Bored (with a 15/64" hole) for small-batch airlocks, or with a Grab Ring for easy manual removal.
Extreme Temperature Resilience: Stable and flexible from -100°F to 400°F, making these stoppers suitable for both freezing and high-heat sterilization or distillation.
Superior Chemical Resistance: Resists cracking, chafing, and mold, outperforming standard rubber stoppers in longevity and hygiene.
BPA-Free & Safe: Certified compliant with FDA Industry Standard 21CFR177.2600, making them safe for food, beverage, and medical applications.
Grab
| TOP |
BOTTOM |
HEIGHT
|
| 23.1 mm |
18.2 mm |
31.75 mm |
| 29/32" |
23/32" |
1 1/4" |
Solid / Hole
| TOP |
BOTTOM |
HEIGHT
|
| 23.1 mm |
18.2 mm |
25.4 mm |
| 29/32" |
23/32"
|
1" |
Hole Diameter = 15/64" (5.95 mm)
