Perko Fig. 870 Cowl Vent

• Chrome plated zinc alloy cowl with black
PERKO•KOTE base.
• 3” duct threads into neck.
• Length 5-1/8”, width 4”, height 3-7/8”.
• Cowl opening square 7-1/3”.
• Uses #10 fasteners.
• Note: Hose clamps not required