Tedlar PVF Gas Sampling Bag with PP valve, 10L, 3/16'' OD (4.76mm) Back Catalog number: TDL71_10L Availability: In the manufacturer's stock Price on request - + Recommended U-COV07 O-Ring, low-emission, size007, pk 10 (TD autosampl Price on request C-POD-SP10 POD Support Plate, with clip, pk 10 Price on request U-COV450 O-Rings, low-emission,pk100 Price on request