Pro-source PRO19673 Pleated Air Filter 24x24x4 Merv 11

Product Description

The PRO-SOURCE PRO19673 is a MERV 11 wire-backed pleated air filter designed for forced-air HVAC systems requiring a 24 x 24 x 4 inch filter. The filter media is synthetic and is supported by a wire backing that maintains pleat geometry under airflow, preventing media collapse. The beverage board frame provides structural rigidity during installation and service. Rated for up to 2,500 CFM with a maximum face velocity of 625 FPM, this filter handles high-airflow residential and light commercial air handlers. MERV 11 filtration captures fine particulates including dust, mold spores, and pet dander without excessive static pressure penalty.

This filter is suited for residential and light commercial forced-air systems using standard 24 x 24 x 4 inch filter housings. It fits central air handlers, furnaces, and heat pumps with appropriately sized filter racks or return-air boxes. The 4-inch depth provides extended surface area compared to 1-inch and 2-inch filters, supporting longer service intervals between changes. Rated for use with any unit, making it a general-purpose replacement in any system sized for this nominal filter dimension. UL 900 listed for fire safety compliance.

Key Features

• MERV 11 efficiency captures fine particulates including dust, pollen, mold spores, and pet dander
• Wire-backed pleated construction prevents media collapse at rated airflow up to 625 FPM
• Synthetic filter media for consistent efficiency across the service life of the filter
• Beverage board frame provides a rigid, moisture-resistant structure for secure fit in filter tracks
• Initial resistance of 0.13 inches w.g. at 375 FPM, 0.22 at 500 FPM, and 0.33 at 625 FPM — low static pressure drop at rated flows
• UL 900 listed; rated for continuous operation up to 150 degrees F

Compatibility

Designed for use with any forced-air HVAC unit accepting a nominal 24 x 24 x 4 inch filter. Actual dimensions are 23.5 x 23.5 x 3.75 inches, which is standard for this nominal filter size.

Installation Notes

HVAC technicians and qualified service personnel should power down the air handler or furnace at the disconnect before replacing the filter. Confirm airflow direction arrow on the filter frame aligns with system airflow toward the blower. The beverage board frame is not rated for wet environments — ensure the filter housing is free of standing water or condensation before installation. Filter replacement frequency depends on system runtime, indoor air quality, and MERV rating; inspect per manufacturer or building maintenance schedules.