Filterbuy 17.5x21x5 Air Filters, AC Furnace for Aprilaire Space Gard (MERV 8)
The Filterbuy 17.5x21x5 Air Filters are designed specifically for Aprilaire Space Gard systems, with a MERV 8 rating for efficient filtration. These pleated filters feature electrostatic filtration technology and are made with synthetic filter media, providing features such as dust, moisture, and heat resistance. Manufactured in the United States, these filters have a filter life of 3 months and are available in packs of 1, 2, or 4. With a nominal size of 20x25x6, these silver filters have actual dimensions of 19.75 x 24.25 x 5.88 inches, making them compatible with a range of HVAC systems for improved indoor air quality.