Scepter 6-Gallon Portable Marine Gas Can with 2-Way Vented Cap — Built-In Gauge & Underseat Design

Smart. Trusted. Best-in-class. The Scepter 6-Gallon Portable Marine Gas Can is designed for life on the water. Its slim, under-seat silhouette fits small boats and dinghies without sacrificing capacity or reliability. Crafted from UV-stabilized, multi-layer HDPE, it resists sun, salt spray, and the everyday wear marine environments demand. The molded-in feet lift the tank and promote airflow, helping keep decks drier and more stable during operation.

Fuel on the water is about control and convenience. The Scepter tank uses a 2-way vented cap that allows air to enter during refueling and automatically relieves pressure above 5 psi to minimize vapor buildup. This EPA/CARB-approved venting system aligns with current regulations while keeping refueling smoother. You may notice some swelling of the can under pressure; this is a known behavior related to vented designs under EPA rules. The tank remains sealed and safe even when swelling is visible, thanks to a robust, tested shell.

Designed for real-world boating scenarios

• 6-Gallon capacity provides ample range for small harbor boats and fishing dinghies, while the slim profile fits under seats for tidy storage.
• The built-in fuel gauge offers quick visibility of the remaining fuel without disconnecting hoses; the side connection supports a standard fuel line (sold separately).
• Portability is enhanced by a comfortable top handle, so you can move the tank from dock to vessel with minimal effort.

Durable, practical engineering

• Rugged 5-layer, crush-resistant HDPE shields contents and minimizes vapor loss in harsh marine environments. UV-stabilized construction helps resist sun damage over time.
• Engineered to handle diesel and ethanol-blended fuels, expanding your refueling options on mixed-fuel boats and equipment.
• Standard 1/4 NPT marine fittings can be connected with a compatible line (not included) for flexible plumbing on board.

With Scepter, you gain a compact, reliable fuel partner that stays ready from dockside to the open water. The 9.3 in L x 12.2 in W x 10.2 in H footprint keeps it out of the way on crowded decks, while the top handle and under-seat design support quick setups on boats, dinghies, or shore-based storage. This tank embodies practical, purpose-built engineering, offering a credible option for boaters who want a trusted, durable fuel container that travels well and stands up to marine conditions.

Specs at a glance

• Capacity: 6 gallons (22.7 L)
• Dimensions: 9.3 in L x 12.2 in W x 10.2 in H
• Material: UV-stabilized multi-layer HDPE
• Cap: 2-way vented cap, EPA/CARB compliant
• Gauge: built-in fuel gauge
• Fittings: accepts standard 1/4 NPT marine fittings