Enhance your indoor air quality with our 16x20x4 air filters, available in MERV 8, 10, 11, and 13 ratings. These 4-inch indoor air filters provide superior particle capture, ensuring a cleaner and healthier environment. From common household allergens to microscopic contaminants, our MERV 8 to 13 16x20x4 air filters offer a range of options to meet diverse filtration needs, making them a reliable choice for both residential and commercial spaces.