Fantastic Vent RV Vents and Fans - FV800900 This roof vent will allow air to circulate in your motorhome or enclosed trailer to keep the interior ventilated without compromising security. Dome opens and closes when you crank the handle. Bug screen detaches for easy cleaning. Features:

• Roof vent lets hot, stale air out of and cool, fresh air into your RV, camper, or enclosed trailer
  • Allows air to circulate while your RV remains locked
• Hand-operated knob makes it easy to open and close the vent from inside your RV
  • No need for electrical wiring
• Pop-out screen keeps insects out and easily detaches for cleaning
• Smoke-colored polyethylene dome filters UV rays while allowing light in
• White interior polypropylene trim (or garnish) and roof flange are included
  • Smooth edges won't cut you during installation
• Simple installation with included hardware
• Made in the USA

• Application: RV, camper, and trailer roofs up to 4" thick
  • Rough opening size: 14-1/4" x 14-1/4"
• Vent extends above roof:
  • 4-1/2" When closed
  • 11-1/2" When open
• Warranty (manufacturer):
  • 2-Year limited on vent
  • Lifetime on dome

This simple, hand-operated roof vent lets musty air, smoke, heat, and cooking odors escape your RV or enclosed trailer; and it lets fresh air in. There's no need to connect wires or operate any controls. Just turn the crank for instant ventilation and sunlight. The smoke-colored dome filters UV rays while still allowing light in when closed. And a removable, easy-to-clean mesh screen keeps bugs, leaves, and other debris from entering your trailer through the vent.InstallationThis vent requires a 14-1/4" x 14-1/4" opening in your trailer's roof and ceiling. To replace an old vent, install this vent into the existing opening. If your roof does not already have a vent, you will need to mark and cut an opening between roof joists to install this unit.