The MaxxAir MaxxFan 4000K Ceiling Fan Vent pulls fresh air into your RV while removing hot, stale air and odors. The addition of twin lifting arms means no more lid fluttering in high winds or when driving. This high-powered ceiling fan is easy to operate with a convenient keypad flush-mounted in the ceiling for controlling fan speed, thermostat, and air intake/exhaust. The 12-volt, sealed ball-bearing fan motor moves over 900 cubic feet of air per minute for quick and efficient circulation. Run the fan with the lid closed to circulate air inside your RV like a ceiling fan. The exterior flange has waterproof, molded mounting holes for easy installation of MaxxAir vent covers. The interior insect screen remove easily for cleaning. The white lid closes securely for a low-profile appearance. Weight: 12.15 lbs. Two-year limited warranty; lifetime warranty on lid. FEATURES:• 12" dia., 10-blade fan• Long-life, fuse-protected motor• Fits all standard 14" x 14" roof openings• Mounting screws and hardware included (roof sealant sold separately) Control fan speed, thermostat, air intake/exhaust High powered 10-speed intake & exhaust fan Moves over 900 cu. ft. of air per minute | Maxxair MaxxFan Standard 4000K in White