AAF Flanders Disposable Fiberglass Filters

Overview

The AAF FLANDERS 12X18 is a flat-panel, disposable spun fiberglass furnace filter designed for residential forced-air heating and cooling systems. Rated MERV 4, it captures large airborne particles including dust, lint, and pollen, providing baseline mechanical filtration to protect HVAC equipment and maintain basic indoor air quality. The filter features a metal retainer on the air-exit side that holds the fiberglass media securely in place during operation. Intended as a 30-day replacement filter, it is sized at 12 inches by 18 inches by 1 inch nominal, with actual dimensions of 24.02 inches by 15.98 inches by 0.98 inches. Installation requires no tools and is handled routinely by HVAC technicians and informed homeowners alike. This filter fits standard 1-inch filter slots in residential gas furnaces, heat pumps, and central air handlers where a low-restriction, disposable panel filter is appropriate. Its spun fiberglass construction offers low static pressure drop, making it well-suited for systems that require minimal airflow resistance. The MERV 4 rating is appropriate for basic equipment protection in environments with moderate dust and lint loads. It is typically installed in return-air filter grilles or in furnace filter tracks at the equipment cabinet. Key Features MERV 4 rated filtration - captures dust, lint, and large airborne particles Spun fiberglass flat-panel media with low airflow resistance Metal retainer on air-exit side keeps media in place under…