New Devex Sampling Bag with PTFE Valve & Septum Fitting, 50L Back Catalog number: HEDNDV31_50L Availability: In the manufacturer's stock Price on request - + Recommended U-T7EMP-2S Empty cold trap for UNITY series 2 Price on request U-T14H2S-2S H2S cold trap, UNITY 2/xr Price on request U-COV03 O-Ring, Size 003, pk 10 Price on request