Polyester gas sampling bag with PTFE dual-valve, 5L Back Catalog number: HEDPOL32_5L Availability: In the manufacturer's stock Price on request - + Recommended HEDTDLC31Z_1.6L Tedlar® PVF Sampling Bags PTFE On/Off valve, 1,6L Price on request U-COV07 O-Ring, low-emission, size007, pk 10 (TD autosampl Price on request HEDDEV41_5L DEVEX sampling bags 5L, stopcock & septum Price on request