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-T9TNX-2S Unity 2/TD-100 Cold trap, Tenax TA Price on request C-HSPH HiSorb handle, for manual probe extraction Price on request M-MCAL20 Disposable dish, alum, 20mL,pk100 Price on request