Master Flow 18 in. W X 24 in. L White Aluminum Wall Louver

Overview
One-piece integral louvered aluminum construction for exceptional strength and eliminates the need for a screen. Used for intake or exhaust venting. For flush or recessed installation.

Features 

• Recommended for hard-to-ventilate or other restricted areas
• Just cut appropriate-sized hole and snap in place
• It is designed for attic intake or exhaust applications