Flint Standard Wall Glass Tubing, Machine-made tubing is designed from a formula that combines all the properties necessary for easy bending and blowing work, Lead and Potash-Free, Uniform Diameter and Wall Thickness, Dimension: 0.6 x 122 cm
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)