New Devex Sampling Bag with PTFE Valve & Septum Fitting, 25L Back Catalog number: HEDNDV31_25L Availability: In the manufacturer's stock Price on request - + Recommended M-MCHOR O-Ring, micro-chamber pan seal, for M-CTE120I,pk 6 Price on request U-COV07 O-Ring, low-emission, size007, pk 10 (TD autosampl Price on request U-T18325-2S EPA 325 cold trap, UNITY 2/xr and TD-100/xr Price on request