These units are commonly employed in bilge ventilating systems, with the option to include a mechanical blower. Marinco pioneered the introduction of soft, safe, and durable PVC vents, setting a high standard in the marine supply industry. For ease of interchangeability, Marinco's 4" cowl vent models are designed to fit seamlessly into the same 4" Snap-In deck plates that accommodate both the Combo and 12V vents in either 3" or 4" sizes. Experience enhanced ventilation with these high-quality cowl vents, a must-have addition to any marine setup.

• Soft and durable PVC construction returns to original shape if stepped on
• Safer than metal cowl vents - prevents injury and resists snagging lines
• Snap-In vents include deck plate and cover
• Marinco adapter accessories make installing below-deck duct hose easy
• White with bright red interior
• Includes white Snap-In deck plate and cover