Attwood P-Trap 90 Degree Fuel Tank Vent, Black, Standard Mount for 5/8 Inch Hose - 1670-3

The Attwood 1670-3 is a 90 degree P-Trap fuel tank vent built to keep water out of the fuel tank while still letting the tank breathe. The trapped-water design in the P-shaped body helps stop water from entering the fuel system during washdowns and normal sea conditions, while the vent continues to allow air to move freely in and out of the tank as fuel is used or added. Because the P-Trap design manages water intrusion at the vent itself, it eliminates the need to run a separate anti-siphon loop in the vent hose, simplifying the plumbing run between the tank and the hull fitting.

This is a standard mount vent with a black vent head, sized for use with a 5/8 inch interior diameter hose. It requires a 3/4 inch installation hole through the hull or transom and is rated for hulls with a maximum thickness of 9/16 inch. The vent body is molded from durable plastic for corrosion resistance in the marine environment, and its universal fit type makes it suitable for a wide range of boats using a standard fuel tank vent setup.

Specifications

• Brand: Attwood
• Manufacturer Part Number: 1670-3
• Product Category: Ventilation
• Material: Plastic
• Color: Black
• Mount Type: Standard Mount
• Hose Compatibility: 5/8 inch interior diameter hose
• Installation Hole Diameter: 3/4 inch
• Maximum Hull Thickness: 9/16 inch
• Item Dimensions: 5 x 9 x 10.75 inches
• Weight: 0.215 pounds
• Fuel Type: Gasoline
• Fit Type: Universal
• UPC: 022697167033

Fitment

Universal fit for boats using a standard 5/8 inch ID fuel vent hose; no specific make, engine, or year restrictions are listed for this vent.

Replaces (OEM)

No OEM cross-reference numbers are listed for the Attwood 1670-3.

Frequently Asked Questions

What does the Attwood 1670-3 fuel tank vent do? The Attwood 1670-3 is a 90 degree P-Trap fuel tank vent that helps prevent water from entering the fuel tank while still allowing air to vent freely during normal sea conditions and washdowns.

Does the 1670-3 vent require an anti-siphon loop? No. The P-Trap design of the Attwood 1670-3 eliminates the need for a separate anti-siphon loop in the vent hose.

What hose size does this vent use? The Attwood 1670-3 is designed for use with a 5/8 inch interior diameter hose.

What size installation hole is needed? Mounting the Attwood 1670-3 requires a 3/4 inch installation hole through the hull or transom.

Is there a maximum hull thickness for this vent? Yes, the Attwood 1670-3 is rated for a maximum hull thickness of 9/16 inch.

What color is the 1670-3 vent head? The Attwood 1670-3 has a black vent head.

Is this a standard mount or angled mount vent? The Attwood 1670-3 is a standard mount fuel tank vent.

What material is the Attwood 1670-3 made from? It is made from durable plastic suited to the marine environment.

Will the Attwood 1670-3 fit any boat? The 1670-3 has a universal fit type and is intended for boats using a standard 5/8 inch ID fuel vent hose setup; no specific make or model restrictions are listed.

What fuel type is the 1670-3 vent rated for? The Attwood 1670-3 is rated for use with gasoline fuel systems.

What are the dimensions of the 1670-3 fuel vent? The Attwood 1670-3 measures 5 x 9 x 10.75 inches.

How much does the Attwood 1670-3 weigh? The Attwood 1670-3 weighs 0.215 pounds.