Tedlar PVF Gas Sampling Bag with PTFE dual-valve, 2L Back Catalog number: TDL32_2L Availability: In the manufacturer's stock Price on request - + Recommended C-CRCK Canister Rack Connection Kit, for connecting 15 x 1/4" outlet canisters to U-RACK02 Price on request C-CL010 Penclips, pk10 Price on request U-COV07 O-Ring, low-emission, size007, pk 10 (TD autosampl Price on request