Tedlar PVF Gas Sampling Bag with PP valve, 5L, 3/16'' OD (4.76mm) Back Catalog number: TDL71_5L Availability: In the manufacturer's stock Price on request - + Recommended C-CL010 Penclips, pk10 Price on request U-T13DHS-2S DHS application cold trap, UNITY 2/xr andTD-100/xr Price on request U-COV07 O-Ring, low-emission, size007, pk 10 (TD autosampl Price on request