Tedlar PVF Gas Sampling Bag with PP valve, 6L, 3/16'' OD (4.76mm) Back Catalog number: TDL71_6L Availability: In the manufacturer's stock Price on request - + Recommended C-MCTEKIT-250 High Temperature MCTE Starter Kit Price on request U-T2GPH-2S UNITY 2 & TD-100 Cold trap general purpose hydrop Price on request C-TDKIT-01 Essential TD Starter Kit Price on request