Female straight adapters are the same size female joints on both ends, but with different lengths in the middle. Typically used to extend the distance between two of the same sized male standard taper joint sizes. Made of 3.3 borosilicate glass in U.S.A with high quality joints. Quartz, PTFE, and other materials available upon request. Please inquire for other joint types or sizes not listed.
Can also be used as a air condenser