Boat Fuel Tank Vent - 316 Stainless Steel Flush Mount (5/8" Hose)

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Professional Marine Fuel System Ventilation

Upgrade your vessel's fuel system with this premium 316 Stainless Steel Thru-Hull Fuel Vent. Engineered for extreme saltwater environments, the marine-grade 316 alloy provides unmatched resistance to pitting and corrosion compared to standard 304 steel.

Precision Engineered Performance

  • Mirror-Polished Finish: Hand-polished to a high-luster shine, adding a luxury aesthetic while reducing salt buildup.
  • Flush-Mount Architecture: Low-profile design sits nearly level with the hull to prevent fishing line snags and rope tangles.
  • Dual Hose Compatibility: Features a 5/8" (16mm) barbed fitting, ideal for standard marine fuel vent hoses.
  • Complete Installation Kit: Includes the threaded vent body, heavy-duty mounting gasket, and secure locking nut for a watertight seal.

Whether you are performing a restoration or a new installation, this vent ensures reliable gas tank aeration while maintaining a streamlined, professional look on your boat's exterior hardware.

Comprehensive specification sheet showing 316 stainless steel material, 5/8 inch hose size, and mirror polished finish details for the Airow Marine vent.

Frequently Asked Questions

Why is 316 stainless steel better than 304 for this fuel vent?
316 stainless steel contains molybdenum, which specifically prevents chloride-induced corrosion. In saltwater environments, standard 304 steel will often pit and rust within a single season, whereas 316 maintains its structural integrity and mirror finish for years.
Will this vent catch my fishing lines or dock ropes?
No. The flush-mount architecture features a low-profile, beveled perimeter. This design ensures that lines and ropes slide smoothly over the fitting rather than snagging on a protruding cap, which is a common failure point in older vent styles.
Does it come with everything needed for a watertight installation?
Yes. This kit includes the precision-threaded 316 stainless body, a high-density rubber mounting gasket for a secure seal against the hull, and a heavy-duty stainless locking nut to ensure the fitting stays vibration-resistant.

Engineering Specs

REV: 2025.Q4 // TECH-STANDARD
Material_Grade
AISI 316 Stainless Steel
Surface_Finish
Hand-Polished Mirror Finish
UV_Resistance
Electropolished (Maximum Thermal Reflection)
Corrosion_Rating
316 Stainless Steel (Salt Spray Tested)
Compatibility
Yacht, Bass Boat, Pontoon, Center Console
Hull_Integration
Fiberglass, Aluminum, Steel, Wood
Standard_Ref
Universal Flush Mount Replacement

ESTABLISHED 2017

AirowMarine

Professional Marine Hardware for a Safer Voyage.

Design engineers and marine consultants reviewing technical blueprints and a stainless steel porthole window assembly in an office overlooking a container port.

Our Roots

Hong Kong Based, 8 Years of Expertise

The story of AirowMarine began eight years ago. Headquartered in Hong Kong, we have been dedicated to the global operation and brand building of marine accessories. These eight years of experience have taught us that on the unpredictable sea, every single component carries the trust and safety of the boat owner.

B2B marine hardware production: A massive mirror-polished 316 stainless steel boat anchor being hoisted for quality verification in AirowMarine’s industrial workshop in mainland China.

Supply Chain

Invested Factories in Mainland China

To ensure our products withstand extreme environments, we are more than just a bridge for trade. AirowMarine has invested in its own manufacturing facilities in Mainland China. Leveraging the region's mature and efficient industrial supply chain, we are deeply involved in the entire process—from raw material selection and precision machining to final assembly. We avoid exaggerated claims; instead, through professional logistics and rigorous quality control, we ensure every product delivered to you meets high nautical-grade standards.

Technical quality control inspection showing a Mitutoyo digital caliper measuring a polished marine fitting at 12.45mm precision.

Reliability

Strict QC & Global Logistics

As a provider of marine accessories, our business is intimately connected to the water. We believe that protecting the ocean is not just a slogan; it must be reflected in every detail of our business. Currently, AirowMarine is continuously optimizing our packaging solutions: we maximize the reduction of single-use plastics in our packaging and shipping processes, using recyclable paper-based cushioning materials whenever possible. Our products are built to power your voyage, while our packaging is designed to protect the purity of the blue sea.

Close-up of a 316 stainless steel circular louvered deck vent in eco-friendly honeycomb paper packaging with AirowMarine shipping label.

Our Mission

Protecting the Blue, Plastic-Free

We are aware that there is always room for improvement, but we have never stopped in our pursuit of excellence and environmental responsibility. AirowMarine is committed to providing you with durable, reliable, and eco-conscious marine accessories.

Expert Guidance

Technical help in 24 hours

International Delivery

Secure & Tracked Shipping

Custom Solutions

Tailored parts for your boat

Factory Direct

Invested supply, best value

Proven Quality

Tested for nautical safety