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Roof & Wall Caps


The EcoVent by Broan® is the only exit vent to feature the patented floating ball check valve. This award-winning innovation improves air flow efficiency, reduces heating costs and provides an airtight thermal seal that prevents condensation in ducts while eliminating backdrafts to keep homes quiet and secure even on the windiest days. With EcoVent, animals can’t get in and heated or cooled air won’t get out. It is an attractive, easy way for homeowners to enjoy a more comfortable, secure and energy efficient home.




  • Patented floating ball check valve prevents outside air from flowing back into the home
  • Insulated to improve energy efficiency and eliminate condensation in ducting
  • Slient operation, even in strong winds
  • Built-in bird screen prevents birds and other small animals from entering duct work
  • Pre-assembled aluminum duct connector
  • Compatible with 4" round ducting
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