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 U-T7EMP-2S Empty cold trap for UNITY series 2 Price on request TDL71_0.5L Tedlar PVF Gas Sampling Bag with PP valve, 0,5L Price on request HEDPOL32_5L Polyester gas sampling bag with PTFE dual-valve, 5L Price on request