Broan-Nutone 3 In./4 In. Exhaust Fan Wall Vent Kit (8-Piece) Pack options:Pack of 1 Accessible screw installation holes caulk

Accessible screw installation holes caulk friendly frame

Ventilated opening dimensions: 20-1/2" x 26"

brick and stone veneer

Model No GAFCB10520: Size: 10

Broan-Nutone 3 In./4 In. Exhaust Fan Wall Vent Kit (8-Piece) Pack options:Pack of 1 Accessible screw installation holes caulkWall vent kit for complete wall ducting installation of exhaust fans with 3 inch or 4 inch duct connector. Kit includes: White wall cap for 4 inch round duct with 4 mounting screws, engineered resin material for impact and UV resistance, weighted hood guards (against wind, bird, and lint build up), 4 inch diameter metal duct connector, 2 nylon zip ties, 3 inch to 4 inch duct adapter, 5 feet of 4 inch diameter flexible foil ducting (conforms to UL181