Durable: Made of high-quality borosilicate glass, with extremely low thermal expansion coefficient, high temperature resistance, and thick wall design.
Extended Tube: A 3 inch tube is extended below the connector to introduce gas or vacuum into the flask below.
Standard size: Extension inlet adapter with 24/40 inner taper fitting under the upper two hose fittings.
Easy to use: Reusable, Easy to operation, for distillation apparatus chemistry lab. Allows connection of hoses to equipment used to introduce vacuum or pressure.