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The AAF/FLANDERS 10055.01183 is a flat-panel spun fiberglass disposable furnace filter rated at MERV 4. Measuring 18 inches by 30 inches by 1 inch, it is designed for residential forced-air heating and cooling systems where basic particulate capture and unrestricted airflow are the priorities. The filter uses spun fiberglass media with no metal media retainers, making disposal straightforward at the end of its 30-day service life. It ships in a package of 12 units. HVAC technicians and facility maintenance personnel install this filter in standard 1-inch filter tracks on furnaces and air handlers.
This filter is suited for residential and light commercial forced-air applications where a low-resistance, economy-grade filter is acceptable. The MERV 4 rating makes it effective against large airborne particles including dust and lint. It is commonly installed in furnaces, air handlers, and return-air grilles that accept a 1-inch flat-panel filter. The 30-day replacement interval is typical for high-traffic environments or systems running continuously during peak heating and cooling seasons.
Designed as an OEM-style replacement for residential and light commercial forced-air furnaces and air handlers that accept a standard 18-inch by 30-inch by 1-inch flat-panel filter.
A licensed HVAC technician or qualified maintenance professional should shut down the furnace or air handler at the thermostat and disconnect power at the disconnect switch before servicing the filter. Verify airflow direction markings on the filter frame and align the arrow with the direction of airflow toward the blower. At MERV 4 and a 30-day service life, inspect the filter at or before the 30-day mark and replace promptly to avoid restricted airflow or blower strain.
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