GSC International Inc

Test Tube Kit. Includes 21-Hole Test Tube Rack, 72 each 18x150mm Test Tubes, 12 Test Tube Brushs, Test Tube Clamp, & Safety Goggles

Test Tube Kit. Includes 44-Hole Test Tube Rack, 72 each 16x150mm Test Tubes, 12 Test Tube Brushs, Test Tube Clamp, & Safety Goggles

Test Tube Kit. Includes 90-Hole Test Tube Rack, 72 each 13x100mm Test Tubes, 12 Test Tube Brushs, Test Tube Clamp, & Safety Goggles

Test Tube Borosilicate Glass, 25x200mm. Pack 48. 10 Packs per Case.

Test Tubes Borosilicate Glass 25mm x 200mm. Pack 48.

Test Tubes Borosilicate Glass 25mm x 150mm. Pack 72 per box and 10 boxes per case.

Test Tubes Borosilicate. 25mm x 150mm. Pack 72.

Test Tubes Borosilicate Glass 20mm x 150mm. Pack 72. Case 10 packs.

Test Tubes Borosilicate Glass 20mm x 150mm. Pack 72.

Test Tube Borosilicate Glass 18X150mm. Pack 72. Case 10 packs.

Test Tubes 18mm x 150mm. Pack 72.

Test Tube Borosilicate Glass 16x150mm Pack 72. Case 10 packs.