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-T3ATX-2S Air Toxics, C2 - C14 (TO-14), cold trap Price on request C-HSINS10-6 Agitator spacer for vials, 20mL to 10mL, pk/6 Price on request C-CRCK Canister Rack Connection Kit, for connecting 15 x 1/4" outlet canisters to U-RACK02 Price on request