Corning Pyrex Borosilicate Glass Cylindrical Beaded Rim Test Tube, 34ml Capacity (Pack of 72)
PYREX 34mL Test Tubes are made from special tubing for optimum wall thickness. Well annealed, resistant to heat and chemically stable; beaded rims are fire-polished. Tubes have white marking spot. Material: Borosilicate Glass Code 7740. Style: Plain Cylindrical Test Tube (No Graduations, No Cap, No Stopper). Capacity: 34mL. Length: 150mm (Approx). Outer Diameter: 20mm (Approx). Corning #: 9800-20.