JG FinneranHeadspace Vial, 20mL, 23 x 75mm Size, C
JG FinneranHeadspace Vial, 20mL, 23 x 75mm Size, Clear, Glass, Flat Bottom, 20mm Crimp Thread, With White Graduated Marking Spot, Used to Heat the Sample Until the Concentration of the Liquid and Gas Phases are in Equilibrium - JGF