Tedlar PVF Gas Sampling Bag with PTFE dual-valve, 2L Back Catalog number: TDL32_2L Availability: In the manufacturer's stock Price on request - + Recommended U-COV03 O-Ring, Size 003, pk 10 Price on request HEDTDLC-S Repalcement septum for Tedlar bag TDLC31Z Price on request C-POD-KIT01 POD Starter Kit: Carbopack X Price on request