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-COV03 O-Ring, Size 003, pk 10 Price on request U-HSVB-20 Replacement Vial Block, for HiSorb Agitator Price on request HEDTDLC-S Repalcement septum for Tedlar bag TDLC31Z Price on request