Devex Gas sampling bags 10L, PP screw cap valve, 3/16'' OD (4.76mm) Back Catalog number: DEV71_10L Availability: In the manufacturer's stock Price on request - + Recommended C-TDKIT-01 Essential TD Starter Kit Price on request M-TICAP Tube interface cap for removable lid,pk 6 Price on request T-3GBGE CW agents cold trap, TT24-7 Price on request