Welcome to Defender Canada! 
Description
Features: Chrome plated zinc alloy cowl with black polymer base 3" Duct threads into neck, hose clamps not required Specifications: Cowl Opening: 8 sq. in. Length: 5 3/4" Width: 4 3/8" Height: 2 5/8" Screw Size: #8
Perko Cowl Ventilator - 1312DP0CHR Item # 1402366
Description
Features:
- Chrome plated zinc alloy cowl with black polymer base
- 3" Duct threads into neck, hose clamps not required
Specifications:
- Cowl Opening: 8 sq. in.
- Length: 5 3/4"
- Width: 4 3/8"
- Height: 2 5/8"
- Screw Size: #8