Polyester gas sampling bag with PTFE dual-valve, 5L Back Catalog number: HEDPOL32_5L Availability: In the manufacturer's stock Price on request - + Recommended T-4ATX Air toxics cold trap, TT24-7 Price on request OST-201-3424 Tube gas sampling 150ml nozzle (GL14), septum Price on request T-8MAT Materials emissions cold trap, TT24-7 Price on request