Description
Brand Name: AAF Flanders | Depth: 1 in. | Electrostatic: No | Filter Class: Class II | Filter Frame Material: Cardboard | Filter Material: Fiberglass | Filters Bacteria: Yes | Filters Pollen: Yes | Filters Smoke: Yes | Filters Viruses: No | Height: 20 in. | High Efficiency: Yes | Metal Mesh Support: No | Number in Package: 12 pk | Pleated: No | Trimmable: Yes | Width: 18 in. | Filters Dust/Lint: Yes | Filters Mold Spores: Yes | MERV Rating: 4 MERV This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. The frame is made with one continuous piece of chipboard to guard against corner separation. For peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. Buy a case and be set for the year. | Lasts up to 30 days | Change filters monthly for peak energy efficiency | Low airflow resistance | UL class II
