Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 5L Back Catalog number: TDL31_5L 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 P-00010 VOC-Mole assembly, 230mm,pk10 Price on request C-TDKIT-01 Essential TD Starter Kit Price on request