20x25x4 MERV 8 AC Furnace 4" Inch Air Filters | 6 PACK (Actual Depth: 3-3/4")

20x25x4 AC Furnace Air Filter MERV 8 | Actual Size:19-1/2 x 24-1/2 x 3-3/4 | Our MERV 8 rated electrostatic air filter is convenient to use, easy to replace and excellent for most air filter conditions. The MERV 8 HVAC air filter is designed to protect heating and cooling equipment from most airborne particles. The filter also removes microscopic particles that can contaminate your home, stain walls and furnishings, and aggravate seasonal allergies. MERV 8 Specifications: Protects from Lint, Dust, Pet Dander, Pollen, Dust Mites, & Mold Available in 1", 2", 4"” depths and several standard face sizes Independently tested and verified for quality control 100% synthetic, proprietary media resists moisture and damage Extremely low pressure drop and high dust holding capacity Heavy duty, moisture resistant beverage board frame Two-piece frame provides rigidity with double-wall thickness around outer edge 4” models use die-cut finger separators to stabilize each pleat Rust-resistant, expanded metal support grid made of galvanized steel 100% water repellent, high-strength adhesive coats entire interior of frame Pleat consistency maximizes performance Engineered and designed for high strength and rigidity Recommended to replace at least every 90 days Made in the USA