Glass 10/30 Outer to 14/20 Inner Joint Reducing Connecting Adapter

StonyLab Reducing Connecting Adapter Top joint: 10/30 Outer; bottom joint: 14/20 Inner Borosilicate glass, heavy duty and reusable Plastic joint clip or metal clamp could be used to secure connecting position for better result Warranty: StonyLab 1-year limited warranty; if received damaged, please contact us immediately; we will solve it until satisfied ASIN: B0978239C7, B097826DC7