Broan-NuTone® 506 - Through-Wall Ventilation Fan - CAMPERiD.com
Broan-NuTone 200 CFM Through-Wall Utility Exhaust Fan for Garage, Kitchen, Laundry and Rec Rooms 509 - The Home Depot
Broan-NuTone 200 CFM Through-The-Wall Exhaust Fan with On/Off Switch 509S - The Home Depot
Vintage broan nutone kitchen exhaust fan these are hard to find in good condition and at a reasonable price but they are very good quality this one has a American made GE