Heavy Duty Hinge Kit for Restaurant Canopy Hood Exhaust Fan (Used on Fans with wheels larger than 20″ or Fans with bases of 33″ or larger). Heavy Duty hinge kit provides easy access to the bottom of the fan and to the exhaust ductwork for cleaning and serviceability. Includes left and right fan plates, left and right curb plates, and hardware to attach hinge to curb and hinge to base. Constructed of 10 Gauge Galvanized Steel. The safety stop feature prevents the hinge from opening beyond a certain angle protecting the fan from damage.