Tedlar PVF Gas Sampling Bag with PP valve, 0,5L Back Catalog number: TDL71_0.5L 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 P-00030 VOC-Mole assembly, 830mm,pk10 Price on request M-DSKPF Sample disc, 1.0mm thickness, PTFE,pk 6 Price on request