This outer adapter to GL-18 makes converting a 24/40 male connection into a GL-18 connection a breeze.
The adapter itself uses GL-18 caps which are chemically resistant and heat resistant up to 200°C.
The included envelope seals (located under the GL-18 caps) are perfect for creating an airtight seal, allowing for optimal vacuum.
Made of lab-grade, American-made borosillicate glass.