Ventline (V2262-50 (7") 50 CFM  RV Ceiling Exhaust Fan 

Ventline Ceiling Exhaust Fan. Powered ceiling or bath fan, very efficient for smaller areas. Consists of the following parts: cap and roof flange assembly (sold separately). The Power unit (motor, fan, and pipe assembly).  Self-closing foam damper opens and closes. Dynamically balanced polypropylene blade will not bend out of shape

• The inside grill is 10-inch Diameter
• Powered ceiling or bath fan, very efficient for smaller areas
• 8-inch Diameter rough-in opening required
• Dynamically balanced polypropylene blade will not bend out of shape
• 7 inch Fan without Cap and Flange, 115V, 50CFM