Polyester gas sampling bag with PTFE dual-valve, 5L Back Catalog number: HEDPOL32_5L Availability: In the manufacturer's stock Price on request - + Recommended U-CENKIT Starter Kit: Centri booster pack (DiffLok caps and O-rings) Price on request C-KIT325T-2S 325 Tube Kit Price on request T-12AM Focusing trap, Air Monitoring, for TT24-7 Price on request