Generalaire 4424 Expandable Media Air Cleaner Merv 11

Product Description

The GENERALAIRE 4424 is an expandable media air cleaner rated at 2000 CFM and designed for whole-system air filtration in forced-air HVAC applications. Featuring a MERV 11 pleated filter media, it captures airborne particulates as small as 0.01 microns with 97% efficiency by weight. The thermoplastic molded door provides a durable, airtight housing. An effective filtration area of 72.3 square feet supports consistent airflow distribution across the entire filter face, reducing pressure drop and ensuring uniform particle capture. This unit is installed by licensed HVAC technicians as part of a central air handling system and is built for long-term residential or light commercial service.

The GENERALAIRE 4424 is suited for forced-air systems requiring high-efficiency filtration without major ductwork modifications. Its expandable media design accommodates varying system configurations, making it a practical fit for retrofit and new-installation scenarios alike. The built-in filter change indicator alerts service technicians when media replacement is due, helping maintain consistent air quality and system efficiency over time. At 2000 CFM, it handles a wide range of residential and light commercial airflow demands.

Key Features

• MERV 11 pleated expandable media with 97% efficiency by weight for particles as small as 0.01 microns
• 2000 CFM airflow capacity supports a wide range of system sizes
• 72.3 square feet of effective filtration area for uniform particle capture
• Built-in filter change indicator for consistent maintenance scheduling
• Anti-tear expandable media construction for extended service life
• Thermoplastic molded door provides reliable, durable housing

Compatibility

Designed as an OEM-style expandable media air cleaner for forced-air HVAC systems requiring MERV 11 filtration in the 800 to 2000 CFM operating range.

Installation Notes

Installation should be performed by a licensed HVAC technician. Power down the air handling unit at the disconnect and thermostat before beginning installation. Ensure the media cabinet is properly seated and sealed within the duct opening to prevent air bypass around the filter. Consult local mechanical codes for filter housing placement and service clearance requirements.