Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 2L Back Catalog number: HEDTDL31_2L Availability: In the manufacturer's stock Price on request - + Recommended U-T10CW-2S Chemical Warfare agents cold trap Price on request C-HSINS2-4 Spacer for Agitator, to accommodate for 2mL vials, pk 4 Price on request U-T11GPC-2S Unity 2/TD-100 Cold Trap carbon C4/5-C30/32 Price on request