Keep your RV's air clean and fresh with these high-quality 5.25-inch round air duct filters. This pack includes 6 replacement filters designed specifically for RV air conditioning systems. The FT-525 filters feature a MERV 6 rating, providing effective filtration of common airborne particles. These round filters are perfectly sized to fit standard 5.25-inch RV air ducts, ensuring proper airflow while maintaining filtration efficiency. The robust construction helps maintain consistent performance throughout the filter's service life. Easy to install and replace, these filters help maintain your RV's air quality and protect your AC system from dust and debris. Regular replacement of these filters helps maintain optimal airflow and cooling efficiency in your recreational vehicle. Perfect for RV owners who want to maintain clean, filtered air while traveling or camping.