30/30 is a primary filter for air conditioning systems. The unique configuration of the 30/30 filter allows it to hold more dirt and last longer.
Since the 30/30 frame is made of water-resistant beverage board instead of recycled cardboard, the 30/30 will stand up to the worst conditions an HVAC system will present, with no filter distortion or blowouts. The 30/30 is a very energy-efficient filter due to its large media area, resulting in a low pressure drop. The synthetic 30/30 media is proven to keep a low pressure drop during the filter's lifetime. The media is backed with a corrosion-resistant wire backing that eliminates distortion of the media pack under high air flow conditions.