Standard 20mm aluminum seal Headspace Vials with Flat Bottoms that form a tight seal with closure for accurate analysis and reproducible results. They are 

Wheaton W224224 Aluminum Crimp Seal with PTFE/Butyl Septa for Headspace Vial, 20mm Closure Size (Case of 100): Science Lab Cap Plugs: Amazon.com: Industrial 

Save time and reduce risk of contamination. These convenience kits offer matched quantities of 20 mm headspace vials and aluminum seals with prefitted 

Vial, Headspace, flat bottom, 20 ml, 100 pc/PAK. Manufacturer: Aijiren Technologies. item no.: AG- . $54.10.

Clear 20 ml headspace vials designed to fit most headspace autosamplers.Designed to use separating organic and inorganic compounds for analysis, 

Buy DWK Life Sciences (Wheaton) Headspace Vial, 20 mL, 20mm Al Seal, PTFE/Butyl Septa; 100/Cs and more from our comprehensive selection of Wheaton® 

Results 1 - 30 of 110 Find crimp vial 20 mm and related products for scientific ... Synonym(s): Aluminum crimp seal (without septum), silver aluminum ...

Wheaton headspace vials accept 20 mm aluminum seals Rounded shoulders and bottoms, allowing for even heating and safer operation at higher pressures