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 OST-201-0246 Screw caps for screwthread tubes GL14, bore 8mm Price on request M-TSTIN Inserts, PTFE,pk 6 Price on request NDV32_2L New DEVEX gas sampling bags with PTFE dual-valve, 2L Price on request