Sea-Dog Line Flush Thru Vent, Black ABS Hose Vent for Up to 4 Inch Exhaust Hose

The Sea-Dog Line Flush Thru Vent (337426-1) is a black, injection molded ABS vent designed for cabin or bilge ventilation aboard boats and other marine vessels. It is sized for use with hose up to 4 inches, making it a practical choice for venting engine compartments, cabins, and bilge areas where consistent airflow is needed to reduce moisture buildup and control odors. The vent is constructed of UV resistant injection molded ABS, giving it resistance to sun exposure and outdoor marine conditions over time. Users should avoid contact with acetone or strong solvents, which can damage the ABS material. Installation is straightforward, using four number 8 flat head fasteners, which are not included, through a hole pattern sized to the vent's overall dimensions. With an overall size of 4-15/16 inches and a vent area of 4.05 square inches, this flush-mount vent provides solid airflow while sitting flush against the mounting surface for a clean, low-profile finish. It is also available in the same size in white (337416-1) as a separate part, and in a smaller 3 inch hose size in both black (337326-1) and white (337316-1), so buyers should confirm color and hose size before ordering.

Specifications

• Brand: Sea-Dog Line
• Manufacturer Part Number: 337426-1
• Color: Black
• Material: Injection Molded ABS (UV resistant)
• Hose/Hole Size: Up to 4 inches
• Overall Dimension (C): 4-15/16 inches
• Dimension A: 3-9/16 inches
• Dimension B: 3-3/4 inches
• Dimension D: 5/16 inches
• Vent Area: 4.05 square inches
• Weight: 0.09 pounds
• Standard Pack: 10 each
• Fasteners Required: Four number 8 flat head fasteners (not included)
• UPC: 035514337212

Fitment

• For use with hose up to 4 inches in diameter
• Suited for cabin or bilge ventilation applications

Frequently Asked Questions

What size hose does the Sea-Dog Line 337426-1 flush vent fit? It is designed for use with hose up to 4 inches in diameter, making it suited for larger cabin or bilge ventilation runs.

What color is part number 337426-1? This version of the Sea-Dog Line flush thru vent is black. The same 4 inch vent is also available in white as a separate part number, 337416-1.

Is this vent made for cabin or bilge use, or both? The Sea-Dog Line 337426-1 flush thru vent is designed for both cabin and bilge ventilation, so it can be used in either location depending on the boat's layout.

What material is the flush vent made from? It is constructed of injection molded ABS that is UV resistant, allowing it to hold up to sun exposure in a marine environment.

How is the vent installed? The 337426-1 flush vent installs with four number 8 flat head fasteners, which are not included, through its molded mounting holes.

What are the overall dimensions of this vent? The overall size is 4-15/16 inches, with additional dimensions of 3-9/16 inches (A), 3-3/4 inches (B), and 5/16 inches (D).

How much does the 337426-1 flush vent weigh? It weighs 0.09 pounds.

Does this vent come with mounting hardware? No, the four number 8 flat head fasteners needed for installation are not included with the Sea-Dog Line 337426-1 vent.

Should I avoid any cleaning products with this vent? Yes, contact with acetone or strong solvents should be avoided, as these can damage the ABS construction of the 337426-1 vent.

Is there a smaller version of this same vent available? Yes, Sea-Dog Line also makes a 3 inch version of this flush vent design, available as separate part numbers 337326-1 (black) and 337316-1 (white).

What is the vent area of the 337426-1? The vent area is 4.05 square inches, sized for the up-to-4-inch hose it is designed to work with.