Recommended for collecting organic vapors, such as automotive or plant gas emissions. Fluoropolymer has low permeability and can be used for most applications.

• Polypropylene Fitting - has removable ferrule; use with included septum or 1/4" tube
• Halkey Roberts Valve - twist the barb to open/close
• PTFE Fitting - for use with included septum
• Dual Valves - Halkey Roberts and Polypropylene Fitting, for use with septa or 1/4" tube. Dual valves recommended; fill the bag through the Halkey Roberts Valve, then withdraw sample through the septum

* All bags have a 10 bag minimum order.