Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 5L Back Catalog number: TDL31_5L Availability: In the manufacturer's stock Price on request - + Recommended NDV31_50L New Devex Sampling Bag with PTFE Valve & Septum Fitting, 50L Price on request DEV41_5L DEVEX sampling bags 5L, stopcock & septum Price on request T-4ATX Air toxics cold trap, TT24-7 Price on request