The RadonAway RP145 Pro is one of RadonAway's most popular radon fans. It features Vapor Tite™ sealing technology, an induction welding process where the housing is permanently bonded together, inhibiting radon and soil gas leakage.  It also installs white and stays white with an Eternalast™ polycarbonate plastic housing and provides high air flow, energy efficiency, quiet operation and effective radon reduction. ETL and UL507 compliant. Made in the USA with U.S. and imported parts.