100PCS 3ml Glass Vials Headspace Vials Clear 20mm Crimp top Flat Bottom HPLC
Model : 3ml Headspace Vials. A 20mm vial crimper（Not Provided） is required to fully seal the aluminum cap. High-Quality Materials: These sample vials are made of quality borosilicate glass that is more resistant to thermal shock (Temperature range: -328℉ to 392℉).