Polyester gas sampling bag with PTFE dual-valve, 5L Back Catalog number: POL32_5L Availability: In the manufacturer's stock Price on request - + Recommended T-9GPC General purpose carbon cold trap, TT24-7 Price on request U-COV108-H O-ring, Injector Liner, Black, High Temp, pk/1 Price on request P-FORMR Brass impact former Price on request