T-Shaped Flint Glass Connecting Tube, Arm Length: 1 1/2in, For joining two rubber tubes to a common tube at right angles. Safer connections are provided as the ends have constrictions to hold rubber tubing securely, Size: 1/4in ID X 5/16in OD (7.9mm)
Clay Triangle, Perfect tool for suspending a crucible, The uniform clay tubes supports the crucible and the galvanized iron wire resists rusting, Size: 1-1/2in