Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 2L Back Catalog number: TDL31_2L Availability: In the manufacturer's stock Price on request - + Recommended H3-AXABC HiSorb probe, PDMS/DVB, inert, short version, pk 6 Price on request U-COV450 O-Rings, low-emission,pk100 Price on request M-MCHOR250 O-Ring, micro-chamber pan seal,pk 4 Price on request