Polyester gas sampling bag with PTFE dual-valve, 2L Back Catalog number: POL32_2L Availability: In the manufacturer's stock Price on request - + Recommended NDV31_25L New Devex Sampling Bag with PTFE Valve & Septum Fitting, 25L Price on request T-4ATX Air toxics cold trap, TT24-7 Price on request T-8MAT Materials emissions cold trap, TT24-7 Price on request