Aijiren Tech 20 mm Headspace Vials AND Closures. 20 mm (22.5 x 46 mm) Headspace Crimp Vial, Clear Glass, 10 mL, Beveled Edge, Round Bottom - 125 ea Specifications 3956936 10-CV $82.50 PK 475-66802-PK 20 mm (22.5 x 46 mm) Headspace Crimp Vial, Amber Glass, 10 mL, Beveled Edge, Round $90. Chat Now.