An extended surface air filter engineered to provide maximum performance with prolonged filter lifecycles. These filters are commonly used in office buildings, hospitals, paint booths, gas turbine/power generation and a variety of other commercial and industrial HVAC applications. Its all plastic frame is durable and incinerable. The durable, all-plastic frame makes the DuraMAX 2v the filter of choice in filtration systems with high velocities, variable air volume (VAV), high moisture, or in areas where the user desires to incinerate the filters after use.