Description
Attwood 90 P-Trap Fuel Vent Black | Boat Supply Store
Protect your vessel's fuel system from damaging water ingress with the Attwood 90 P-Trap Fuel Tank Vent. This meticulously engineered vent features a unique 90-degree internal design that effectively traps moisture, preventing it from entering the fuel tank during normal operation or washdowns. Requiring only a 3/4-inch installation hole and accommodating a hull thickness of up to 9/16 inches, this vent simplifies installation by negating the need for a traditional anti-siphon loop, crucial for maintaining optimal fuel quality on boats operating in humid coastal environments or on the Great Lakes.
Key Features
- Reliably prevents water ingress into the fuel tank
- Allows free air venting during normal conditions and washdowns
- Eliminates the need for an anti-siphon loop
- Requires a 3/4-inch installation hole
- Compatible with ethanol-blended fuels
- Meets ABYC standards for marine safety
- Features a 5/8-inch I.D. hose connection
- Black finish with black vent head for discrete aesthetics
Specifications
| Product Specifications | |
|---|---|
| Brand | Attwood Marine |
| Model | 90 P-Trap Fuel Tank Vent |
| Color | Black w/Black Vent Head |
| Hose Connection I.D. | 5/8 inch |
| Installation Hole Diameter | 3/4 inch |
| Maximum Hull Thickness | 9/16 inch |
| Material | Plastic |
| Angle | 90 Degree |
| Ethanol Compatible | Yes |
| Meets ABYC Standards | Yes |
Who This Is For
Boat owners and marine mechanics who require a reliable, water-inhibiting fuel tank vent that simplifies installation by eliminating the need for an anti-siphon loop. Ideal for those maintaining vessels for use with modern ethanol-blended fuels.
How It Compares
| Feature | Attwood 90 P-Trap Fuel Vent Black | Perko 04990099A 90 Degree Fuel Tank Vent |
|---|---|---|
| Hose Size | 5/8" I.D. | 5/8" I.D. |
| Angle | 90 Degree | 90 Degree |
| Eliminates Anti-Siphon Loop | Yes | Not Specified |
| Ethanol Compatibility | Yes | Not Specified |
| ABYC Standards | Meets | Not Specified |
Common Concerns Answered
I'm having trouble finding installation instructions for my older boat. Is this vent difficult to install?
The Attwood 90 P-Trap Fuel Tank Vent is designed for straightforward installation, rated at an 'Easy' difficulty level (2 of 5). It requires drilling a standard 3/4-inch hole and securing the vent, with basic hand tools sufficing. While specific guides for older models may vary in availability, the standardized mounting procedure ensures a manageable process for most boaters and mechanics.
What are the long-term durability concerns with plastic marine vents?
While plastic components in marine environments can be subject to UV degradation over extended periods, the Attwood 90 P-Trap Fuel Tank Vent is engineered for the demanding marine application and meets ABYC standards, signifying a level of tested resilience. For optimal longevity, regular inspection and cleaning are recommended, as with any below-deck fitting.
Will this vent get clogged or affect fuel flow?
The P-trap design actively prevents water intrusion, which is a primary cause of fuel system issues. The vent is designed to allow free air passage during normal conditions, ensuring proper fuel tank ventilation without impeding flow. Its primary function is to block liquid water while allowing gaseous exchange.
Frequently Asked Questions
Does the Attwood 90 P-Trap Fuel Tank Vent prevent water from entering the fuel tank?
Yes, the primary function of the Attwood 90 P-Trap Fuel Tank Vent is to effectively prevent water from entering the fuel tank by utilizing its unique 90-degree internal design to trap moisture.
What size hole is required for installing the Attwood 90 P-Trap Fuel Tank Vent?
A 3/4-inch diameter hole is required for the installation of the Attwood 90 P-Trap Fuel Tank Vent.
Can this vent be used with ethanol-blended fuels?
Yes, the Attwood 90 P-Trap Fuel Tank Vent is explicitly compatible with ethanol-blended fuels, ensuring its suitability for modern gasoline formulations.
What is the maximum hull thickness this vent can accommodate?
The Attwood 90 P-Trap Fuel Tank Vent is designed to accommodate a maximum hull thickness of 9/16 inches.
Does this vent eliminate the need for an anti-siphon loop?
Yes, the unique P-trap design of this Attwood vent effectively eliminates the requirement for a separate anti-siphon loop, simplifying installation and fuel system configuration.
