Borosilicate Female Stopper (24/40) 75 mm in Length

Borosilicate Female Stopper – 24/40 Joint, 75mm

The borosilicate female stopper is a laboratory glassware component sized for compatible 24/40 standard-taper joints. The current product title lists an overall length of approximately 75mm.

This stopper can be used where a compatible female glass closure is required in a laboratory glassware assembly. Joint designation is an important fit specification, but 24/40 sizing alone does not guarantee suitability for every vessel, process, chemical, temperature, vacuum level, or pressure condition.

Before use, inspect the stopper and mating joint for chips, cracks, scratches, contamination, or seized surfaces. Insert ground-glass components carefully and avoid excessive force. Use appropriate joint clips or other retention methods when required by the apparatus.

Do not expose laboratory glassware to sudden temperature changes. Confirm chemical compatibility and cleaning requirements for the exact application. Vacuum or pressure use should only occur when the complete assembled system and each component are specifically rated for those conditions.

Browse related borosilicate laboratory glassware.

For help matching glassware connections, see our Laboratory Glass Joint Size & Compatibility Guide. It explains 24/40 and 34/45 dimensions, joint orientation, and adapter selection.

Frequently Asked Questions

What joint size does the female stopper use?

It is intended for compatible 24/40 standard-taper joints.

What length is listed?

The current product title lists an overall length of approximately 75 millimeters.

Does the joint size guarantee an airtight seal?

No. Joint designation alone does not establish sealing performance, chemical compatibility, or pressure and vacuum ratings.

Related Products

For a related ground-joint component, review 3 Way Claisen Adapter (24/40 Joint). Verify the mating joint orientation and geometry before combining components.