Bionaire BW2300 Twin Window Fan with Remote Control
Draws in cool air, exhausts hot air, or exchanges air with outside
Electronic control with LCD screen and remote control; three speeds
Thermostat turns fan off/on to maintain selected comfort level
Fits double-hung, vertical slider, and casement windows 24 to 37 inches wide
Extenders permit custom fit; 13 inches high overall, with 8-1/2-inch fans
Product Dimensions: 25.5 x 14.1 x 6.0 inches
With a remote control for convenient adjustment, this double window fan draws in fresh, cool air from the outside or exhausts stale, hot air from inside. Operable either manually or automatically--with its thermostat turning the fans off and on to maintain a selected temperature--the unit has three speeds, electronic controls, and an LCD screen showing the selected temperature and the room temperature.
The twin fan is designed to fit double-hung, vertical-slider, and casement windows. A built-in 7-inch extender and two 3-inch extenders permit custom fitting for windows from 24 to 37 inches wide. Because the unit is lightweight plastic it can be moved easily from room to room. The fans have six blades and measure 8-1/2 inches in diameter. Overall, the unit is 13 inches high, arrives fully assembled, and carries a five-year warranty against defects.

Honeywell HW-628 Twin Window Fan
Adjustable grilles direct breezes where needed
3 speed motor for high, medium and low operation options
Fits virtually all window types with built-in adjustable slides
Ultra convenient removable grills for easy cleaning
Built in adjustable side screens to keep dust and bugs out; Rain resistant motor for safe use in windows
Satin White Finish, 3 Speed Window Fan, Intake/Exhaust Settings, , Expands To Fit Windows Up To 34-1/2", Electrically Reversible, Assembled.
48 Possible Comfort Control Settings, Adjustable Thermostat for personal temperature control, Independent speed and fresh Air/exhaust controls allow each fan to operate separately, electronically reversible fresh air/exhaust switch
The Honeywell Enviracaire HW628 Twindow Twin Window Fan can be adjusted to promote fluid air circulation for comfort and freshness in your room on even the most squalid days of the year. Built-in adjustable side screens Uses 110-120 Volts AC UL approved
The remote control (two AAA batteries are included) alters speed, manual/automatic operation, air-flow direction, and temperature. It can also do both simultaneously, because each of the two fans can be set independently to draw in or exhaust out, allowing the unit to exchange inside and outside air.