The Frazier Low Differential Pressure Air Permeability Tester is our budget conscious basic model that is simple to maintain and operate. This is a manually operated unit with a testing range of 0 to 1″ of differential water pressure* and 700 CFM/SF of airflow*. Electronic upgrade retrofits are available for the Low Pressure Air Perm.
*All models can have extended differential pressure and airflow ranges with the appropriate add-ons. Contact us for details.