The 20x20x4 KOCH HWELL MERV 13 filter is designed for high-efficiency air filtration in residential and commercial HVAC systems. With dimensions of 20x20x4 inches, this filter effectively captures dust, pollen, and other airborne particles, ensuring cleaner air. Constructed from high-quality materials, it meets MERV 13 standards, making it an excellent choice for improving indoor air quality. Each carton contains 3 filters, providing a reliable and economical solution for air filtration needs.
