Polyester gas sampling bag with PTFE dual-valve, 2L Back Catalog number: HEDPOL32_2L Availability: In the manufacturer's stock Price on request - + Recommended T-1VX CW agents (in particular VX) cold trap, TT24-7 Price on request U-COV45 O-Ring, low-emission, 5.92mm i.d. pk10 (6mm Difflo Price on request M-MCAL20 Disposable dish, alum, 20mL,pk100 Price on request