Tedlar PVF Gas Sampling Bag with PP valve, 6L, 3/16'' OD (4.76mm) Back Catalog number: HEDTDL71_6L Availability: In the manufacturer's stock Price on request - + Recommended C-KITME01-2S Basic material emissions starter kit Price on request HEDDEV31_5L DEVEX gas sampling bag, stopcock straight valve, 5L Price on request HEDNDV32_2L New DEVEX gas sampling bags with PTFE dual-valve, 2L Price on request