Tedlar PVF Gas Sampling Bag with PP valve, 6L, 3/16'' OD (4.76mm) Back Catalog number: HEDTDL71_6L Availability: In the manufacturer's stock Price on request - + Recommended C-TAGKT TubeTAG starter kit (for SS tubes) Price on request T-8MAT Materials emissions cold trap, TT24-7 Price on request C-POD-KIT01-5TD POD Starter Kit: Carbograph 5TD Price on request