Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 2L Back Catalog number: TDL31_2L 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 T-2HD CW agents (in particular HD) cold trap, TT24-7 Price on request P-CP010 VOC-Mole cap assembly,pk10 Price on request