Pro-source PRO21541 Pleated Air Filter 12x24x4 Merv 13

Product Description

The PRO-SOURCE PRO21541 is a MERV 13 pleated air filter designed for forced-air HVAC systems in residential and light commercial applications. Measuring 12 x 24 x 4 inches nominal (actual dimensions: 11-3/8 x 23-3/8 x 3-3/4 inches), it captures 80 to 85 percent of airborne particles at the tested efficiency range. The wire-backed synthetic media maintains pleat geometry under airflow loading, while the beverage board frame holds dimensional stability in standard filter racks. HVAC technicians and service professionals install this filter as a direct drop-in replacement during scheduled maintenance or system upgrades requiring higher filtration efficiency.

This filter fits any forced-air unit with a matching 12 x 24 x 4 inch filter opening. Its 4-inch depth and high-capacity rating make it well suited for systems where extended service intervals are preferred, particularly in environments with elevated dust, pollen, or particulate loads. The filter is rated for airflow up to 1,000 CFM at a maximum face velocity of 500 FPM, making it appropriate for a broad range of residential air handlers, furnaces, and fan coil units. It also earns LEED points, supporting projects with indoor air quality credits.

Key Features

• MERV 13 rating with 80 to 85 percent particle capture efficiency
• Wire-backed pleated synthetic media maintains pleat shape under sustained airflow
• Beverage board frame provides structural integrity in standard filter tracks
• Rated for up to 1,000 CFM and 500 FPM maximum face velocity
• Initial resistance of 0.34 inches w.g. at 500 FPM; final resistance of 1.0 inch w.g.
• Qualifies for LEED indoor air quality points
• Maximum operating temperature of 150 degrees F

Compatibility

Designed for use with any forced-air HVAC unit accepting a nominal 12 x 24 x 4 inch filter. Actual dimensions are 11-3/8 x 23-3/8 x 3-3/4 inches; verify filter rack clearances before installation.

Installation Notes

Installation is performed by licensed HVAC technicians or qualified service personnel. Always shut down the air handler or furnace at the disconnect before removing or inserting the filter to prevent unfiltered air bypass and protect blower components. Confirm airflow direction arrow on the frame aligns with system airflow before seating the filter. Inspect the filter rack and door seal for gaps that could allow air to bypass the media.