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 T-13PAM Focusing trap, Photochemical Assessment Monitoring Stations (PAMS), for TT24-7 Price on request U-T19PAH-2S PAH cold trap, UNITY 2/xr and TD-100/xr Price on request U-HSVB-20 Replacement Vial Block, for HiSorb Agitator Price on request