Polyester gas sampling bag with PTFE dual-valve, 5L Back Catalog number: HEDPOL32_5L Availability: In the manufacturer's stock Price on request - + Recommended C-CL100 Penclips, pk100 Price on request C-KITME01-2S Basic material emissions starter kit Price on request U-COV07 O-Ring, low-emission, size007, pk 10 (TD autosampl Price on request