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 M-MCHOR O-Ring, micro-chamber pan seal, for M-CTE120I,pk 6 Price on request SERZ-1097 Spare tube assembly, ACTI-VOC Price on request U-COV03 O-Ring, Size 003, pk 10 Price on request