Ventline Vent dome 14 Inch x 14 Inch Vent with Radius Corners. Lift mechanism provides a smooth operation and eliminates chatter. The slide mechanism has more surface area contact, making the guide bar stronger and allowing better distribution of stress. 2-piece snap-out screen easily detaches for cleaning. The ceiling garnish and crank handle remain in place: no screws to lose. Easy-grip knob operator replaces the traditional L-shaped crank handle and allows for a smoother operation of the lift assembly. The knob also detaches easily, permitting faster screen removal and cleaning. The knob is interchangeable with the L-shaped crank, so you can also use it on older vents. Polypropylene dome models feature aerodynamically wedge-shaped dome that has 4X the impact strength of other polypropylene covers on the market. 14-1/4 x 14-1/4 rough opening. Extra strong Galvanized steel roof flanges. 2-piece removable Birch White screen frame. White 110-V vent, without garnish.
