- Ace Glass, Inc.
4 or more 10% Discount
- Purchase at least 4 and save 10%
"Sleeve" style septum with hollow plug for use with 14/20 outer joint. Top is flanged with an extension that folds down over the neck of a vessel for a tight seal. The diaphragm can be punctured readily with a syringe needle. Puncture seals automatically after the needle is withdrawn.