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-COV35 O-Ring, low-emission, size 035,pk10 Price on request C-HSPVLP-20 HiSorb septum plug, pk 20 Price on request P-CPS20 Dowty seals, for VOC-Mole cap assembly,pk 20 Price on request