Octagon Louver Vent No Flange 4" Deep
Series: Signature Series Line
Depth: 20 inch depth
Color: Choice Of All Siding Colors
Material: .019 Aluminum / Metal
Screen: Functional And Non Functional
Standard wall depths are 3.5 inches. This octagon vent is commonly called a 4 inch but is physically 3.5 to match the stud depth.