New DEVEX gas sampling bags with PTFE dual-valve, 5L Back Catalog number: HEDNDV32_5L Availability: In the manufacturer's stock Price on request - + Recommended U-T6SUL-2S Sulphur/labile cold trap, Price on request U-T7EMP-2S Empty cold trap for UNITY series 2 Price on request T-2HD CW agents (in particular HD) cold trap, TT24-7 Price on request