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The CARRIER EZXCABXX0821 is a 20x20 filter cabinet designed for use in residential and light commercial forced-air HVAC systems. It houses a MERV 8 filtration media, capturing common airborne particulates such as dust, pollen, and mold spores to protect downstream equipment and maintain air quality. The cabinet integrates into the return-air side of the air handler or furnace and is installed by licensed HVAC technicians. At 19.3 pounds and sized at 22.25 inches in length, 6.5 inches in width, and 20.998 inches in height, the unit is built for straightforward field installation with standard sheet-metal ductwork connections.
This filter cabinet is suited for residential split systems and packaged units where higher-capacity filtration is needed without a full media air cleaner. The 20x20 footprint fits a common filter frame size, making it a practical upgrade from standard 1-inch filter racks. HVAC technicians typically specify this cabinet during new installations or system retrofits where improved filtration efficiency and longer service intervals are priorities.
Designed as an OEM-style replacement or new-installation filter cabinet for forced-air HVAC systems accepting a 20x20 filter frame configuration.
Installation should be performed by a qualified HVAC technician. Power down the air handler or furnace at the disconnect and confirm the system is de-energized before cutting into existing ductwork or modifying the return-air plenum. Seal all cabinet joints with appropriate HVAC tape or mastic to prevent bypass air and maintain filtration efficiency. Follow local mechanical codes and manufacturer guidelines for securing the cabinet to the duct system.
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