The S&P PRF-100 is a specialized 4-inch radon mitigation fan, designed to effectively reduce radon levels in residential spaces. With a robust airflow capacity of 169 CFM and the ability to handle 1 inch of static pressure, this fan employs a backward inclined centrifugal blower motor for optimal performance. Ideal for ensuring a healthier indoor environment, the PRF-100 is your solution for efficient radon removal.