The Polar-Aire Twin Window Fan with Remote features 9" Turbo blades. It is electronically reversible. Locking extenders secure it into place.
Product Features:Three speedsThree fan functions: intake, exhaust, circulateRemote controls: fan power, fan function, fan direction, fan speedsPowerful motor, three-speed setting with individual motor control, reversible motor for intake and exhaust, manual thermostat, side expanders to fit most windowsIncludes fan and remote(Model 281839)