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 U-COV45 O-Ring, low-emission, 5.92mm i.d. pk10 (6mm Difflo Price on request U-COV07 O-Ring, low-emission, size007, pk 10 (TD autosampl Price on request M-DSKPF Sample disc, 1.0mm thickness, PTFE,pk 6 Price on request