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The PRO-SOURCE PRO21522 is a MERV 13 pleated air filter rated for 80 to 85 percent particle capture efficiency, designed for residential and commercial HVAC systems that demand high-performance filtration. The filter features a wire-backed pleated synthetic media construction supported by a beverage board frame, which holds pleat geometry under airflow loading and extends service life. At a nominal size of 18 x 24 x 2 inches, it handles up to 1,125 CFM at a maximum face velocity of 500 FPM. HVAC technicians and mechanical contractors install this filter in air handlers, furnaces, and fan coil units as a direct drop-in replacement during scheduled maintenance intervals.
This filter suits a wide range of forced-air HVAC applications in both residential and light commercial settings. The MERV 13 rating targets fine particulates including dust, pollen, mold spores, and fine combustion particles, making it appropriate for environments with air quality requirements. The integrated wire backing maintains pleat spacing across the full face of the filter, which prevents media collapse at higher velocities. The beverage board frame provides dimensional stability and a secure fit in standard filter tracks. Initial resistance measures 0.25 inches w.g. at 375 FPM and 0.39 inches w.g. at 500 FPM, keeping static pressure penalty manageable across typical system operating ranges. This filter also earns LEED points under applicable green building programs.
Designed for use with any forced-air HVAC unit accepting a nominal 18 x 24 x 2 inch filter, including residential furnaces, air handlers, and light commercial fan coil systems.
HVAC technicians should power down the air handling unit before removing the existing filter and installing a replacement. Confirm the actual filter slot dimensions against the actual filter size of 17-3/8 x 23-3/8 x 1-3/4 inches before installation to ensure a proper fit with no bypass gaps around the frame. Insert the filter with airflow arrows aligned to the direction of airflow through the system. Follow local mechanical codes and the equipment manufacturer's recommended filter change intervals, particularly when operating near maximum velocity ratings.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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