Collection: 25x25x1 Furnace Filters

Breathe easier with premium 25x25x1 furnace filters. Available in MERV 8, 11, and 13 ratings to capture allergens, dust, and pollutants. Our pleated designs maximize filtration surface area while maintaining proper airflow. Perfect for standard and geothermal HVAC systems. Replace every 90 days for optimal indoor air quality and system performance.