Improved whole-house fan designed for easier installation with a new single-hinged bracket. It features a durable, eco-friendly metal housing and a dual-access junction box to make wiring easier in tight spots
Housing Size: 10-1/4" L x 10-1/4" W x 7-3/8" H
Ceiling Opening: 10-1/2" square
Duct Diameter:
50-80-110 CFM models: Integrated dual 4" or 6" round adapter