The Frazier High Differential Pressure Air Permeability Tester is our basic research model for testing at higher pressures and higher airflows. This is really an extended range version of the Low Pressure Perm Tester and retains the same resolution at the low end of the range as that of the Low Pressure Tester. This a manually operated unit with a testing range of 0 to 21″ of differential water pressure* and 5000 CFM/SF of airflow*. Electronic upgrade retrofits are available for the High Pressure Air Perm.
*All models can have extended differential pressure and airflow ranges with the appropriate add-ons. Contact us for details.