New DEVEX gas sampling bags with PTFE dual-valve, 5L Back Catalog number: NDV32_5L Availability: In the manufacturer's stock Price on request - + Recommended SERZ-1097 Spare tube assembly, ACTI-VOC Price on request M-TSTIN Inserts, PTFE,pk 6 Price on request U-T18325-2S EPA 325 cold trap, UNITY 2/xr and TD-100/xr Price on request