About this item

• 14/20 standard outer joint; 19/22 standard outer joint ;24/40 standard outer joint
• Fits on StonyLab 12mm (15/32 inch) O.D. 8mm (5/16 inch) I.D. vacuum tubing
• Commonly used to regulate the flow of gases or liquids into reaction systems
• Borosilicate glass, heavy duty and reusable
• Warranty: StonyLab 1-year limited warranty; if received damaged, please contact us immediately; we will solve it until satisfied
• ASIN: B08SBSPJ19