Pyrex 9800-13 13 X 100 mm Glass Test Tube with Rim (Pack of 6)

Pyrex 9800-15 15 X 125 mm Glass Test Tube with Rim (Pack of 6)

6 Pack - 20x150mm Pyrex Glass Test Tubes with Rim and Marking Spot

Ajax Scientific Spring Steel Test Tube Clamp, 16cm Length

ULAB Scientific Glass Test Tube with Rim, Shot Glass, Cocktail Party Tubes, Cap.10ml, 13x100mm, 3.3 Borosilicate Glass Material, Pack of 20, UTT1007

4 inch Long 5 Piece Pyrex Glass Tubes 12 mm OD 1.5 mm Thick Wall Tubing Borosilicate Blowing Tubes

8 Inch Long 5 Piece Pyrex Glass Tubes 12mm OD 8mm ID 2mm Thick Wall

United Scientific Supplies TTCL03 Test Tube Clamp with Finger Grips, Steel

13x100mm Test Tubes with Cork Stoppers and Cardboard Rack, Borosilicate Glass, Round BTM, 7ml Vol, Karter Scientific 220D6 (Pack of 25)