New Devex Sampling Bag with PTFE Valve & Septum Fitting, 25L Back Catalog number: NDV31_25L Availability: In the manufacturer's stock Price on request - + Recommended U-COV06 O-Ring, Size 006, pk/10 Price on request U-T7EMP-2S Empty cold trap for UNITY series 2 Price on request U-COV03 O-Ring, Size 003, pk 10 Price on request