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 M-TCN04 O-Ring, size 007, and spacer,pk 6 Price on request M-SPC15-120 Collar spacer, alum 15mm, for M-CTE120I,pk 6 Price on request U-T7EMP-2S Empty cold trap for UNITY series 2 Price on request