attwood 12 Gallon Portable Marine Fuel Tank, Standard, With Gauge — EPA/CARB Certified, Low-Permeation

This rugged fuel tank combines automotive-grade multi-layer construction with low-permeation materials and an integrated gauge so you can carry more fuel confidently on day trips or extended outings. Engineered by Attwood, a century-old marine manufacturer, the unit meets EPA, CARB, and ABYC criteria for portable marine fuel systems while adding features that simplify installation and steady fuel delivery.

How does this tank stand up to harsh marine conditions?

The Attwood 12-gallon tank uses a proven multi-layer build designed to resist pressure and environmental stress common on boats. Its materials tolerate temperature swings, UV exposure, and regular handling without rapid wear.

• Automotive-grade multi-layer construction for strength and durability
• Low-permeation materials to reduce fuel evaporation
• Designed and tested to meet ABYC standards for marine use

Will it work with my outboard and existing fittings?

This tank is intended as a portable fuel source compatible with standard small-craft plumbing. It accepts common 1/4" NPT fittings, and the integrated automatic vacuum valve maintains steady fuel flow to most outboard engines without manual venting.

• Compatible with standard 1/4" NPT fuel fittings for quick hookup
• Automatic vacuum valve prevents fuel flow disruptions
• Includes a fuel gauge so you can monitor remaining capacity

What safety and regulatory features does it include?

Attwood designed this portable tank to satisfy regulatory requirements for recreational fuel containers. It is EPA certified and CARB approved, and it has passed testing consistent with ABYC guidance for portable tanks, making it suitable for use in many regions.

• EPA certified and CARB approved for compliant use
• Tested to meet ABYC standards for portable marine tanks
• Low-permeation technology limits vapor loss and improves containment

How does the gauge and fuel-delivery system help on the water?

The built-in gauge gives a quick visual of fuel level, so you can plan runs without guesswork. Paired with the automatic vacuum valve, the tank supplies steady fuel flow and reduces the need for manual venting or adjustments while underway.

• Integrated gauge for real-time fuel monitoring
• Automatic vacuum valve for consistent, hands-off fuel delivery
• Low-permeation build minimizes evaporation between uses

Who is this for: Boaters who need reliable, higher-capacity portable fuel for pontoons, larger dinghies, or multi-day outings will benefit most from the Attwood 12-gallon portable marine fuel tank. It suits owners who want a compliant, easy-to-install tank with better range and thoughtful features like a gauge and automatic vacuum valve—ideal for recreational boaters, rental fleets, and anyone upgrading from smaller portable tanks.

Features include: proven automotive-grade multi-layer construction, endurance in extreme environments, automatic vacuum valve, low-permeation technology, compatibility with 1/4" NPT fittings, EPA and CARB certification, ABYC-tested design, and a 12-gallon capacity with gauge.