Broan-Nutone ILFK2502 In-Line Bathroom Exhaust Fan Kit, Quiet White Ventilation Fan with Vertical Discharge, ENERGY STAR® Certified, 250 CFM - Built In Household Ventilation Fans - Amazon.com
How to Use an In-Line Exhaust Fan to Vent Two Bathrooms (DIY) | Family Handyman
Bathroom Fans - Premium Bathroom Exhaust Fans Powered by External Rotor Motorized Impeller by Fantech | kitchensource.com