#4 Silicone Bung / Stopper
Perfect for labs and using for securing small diameter bottles, these stoppers are made in the US to ensure safety and quality.
Made from food grade silicone, these stoppers hold securely in place no matter the temperature of storage and can easily be sanitized for sequential uses.
Grab
| TOP | BOTTOM | HEIGHT |
| 25 mm | 20 mm | 31.75 mm |
| 31/32" | 25/32" | 1 1/4" |
Solid / Hole
| TOP | BOTTOM | HEIGHT |
| 25 mm | 20 mm | 25.4 mm |
| 31/32" | 25/32" | 1" |
Hole Diameter = 25/64" (9.92 mm)