Tedlar® PVF Gas Sampling Bag with stopcock side-opening valve with silicone septum (air sample bags),HedeTech_specification/price/image_Bio-Equip in China
Tedlar® PVF Gas Sampling Bags with 2 PTFE valves (septum port) TDL32_1L (air sample bag) Dupont gas bag Brand: HedeTech
5L Tedlar® PLV Gas Sampling Bag w/Thermogreen® LB-2 Septa | Sigma-Aldrich
Always in Stock - ESS GD0707-7000 Sampling Bags With Combination Valve, 1L from Cole-Parmer