345-051

Improve your home's indoor air quality with this high-efficiency 20" x 20" x 4" HVAC air filter. Featuring a MERV 11 rating, this pleated replacement filter is engineered to capture a wide range of airborne particles, including dust, pollen, mold spores, and pet dander, making it an excellent choice for households seeking a balance between superior filtration and system airflow. The 4-inch deep design provides a significantly larger surface area for maximum dust-holding capacity and a longer service life compared to standard 1-inch filters. Regularly replacing your furnace or air handler filter ensures peak performance of your heating and cooling system while protecting sensitive internal components from debris buildup. This professional-grade air cleaner filter is a vital component for maintaining a healthy, clean, and comfortable living environment.
Type: Air Filter
Size: 20x20x4
Dimensions: 20 inches × 20 inches × 4 inches
Application: Compatible with residential HVAC systems, central air conditioning units, and forced-air furnaces designed to accommodate 4-inch thick media filters.
Specifications: MERV 11 filtration efficiency; Pleated media design; High-capacity dust retention; Designed for residential and light commercial air filtration systems.