Absorption Tube, Calcium Chloride U-form Stoppered, 100 mm, dia 12 mm — Eisco Labs
SEACHEM GLASS U TUBE 10 MM - Aquatics Unlimited
Eisco U-Form Glass Absorption Tube 125 mm:Tubes, Quantity: Each of 1 | Fisher Scientific
Ideal Spectroscopy | Sample-Seal U-Tube Liquid Sample Holder 100 ml, 5/8 in. OD, Adjustable 0-4 mm Valve, Teflon Tip, High Vacuum Valves, 6.35mm Glass, Includes two 0-4 mm High Vacuum Valves with