Scepter 3-Gallon Portable Marine Gas Can — Slim Under-Seat Fuel Tank with Built-In Gauge & Two-Way Vented Cap

The Scepter 3-Gallon Portable Marine Gas Can is a slim, under-seat fuel tank with a two-way vented cap and built-in fuel gauge designed for small boats and dinghies.

This compact 11.4 L boat fuel tank combines durable, crush-resistant construction with features made specifically for marine use. Molded-in feet and a low-profile design let you stow it under seats while keeping the tank elevated for ventilation and stability. The 2-way vented cap manages airflow and relieves excess pressure, and the integrated sight gauge and pick-up make fuel checks and plumbing straightforward. EPA and CARB compliance ensure it meets current portable fuel container standards.

How does this tank keep fuel safe and stable on the water?

The tank shell is built from a five-layer HDPE that resists crushing, UV degradation, and corrosion, reducing vapor loss and protecting fuel quality. A venting system allows air exchange during refueling and automatically releases pressure above set limits, lowering vapor buildup risks without manual intervention.

• Five-layer, one-piece HDPE construction for durability
• Automatic pressure relief in the two-way vented cap
• Molded-in feet to elevate tank and improve airflow
• EPA & CARB certified for compliance with emissions rules

What makes fueling and fuel-level checks easy?

A molded combination pickup and sight gauge shows remaining fuel at a glance and accepts standard 1/4" NPT marine fittings, so you can connect a fuel line quickly (fuel line sold separately). The top-mounted handle and balanced shape simplify carrying between dock and boat.

• Built-in fuel pick-up and sight gauge for quick level checks
• Accepts 1/4" NPT marine fittings for common fuel hoses
• Integrated top handle for comfortable transport
• Slim profile fits under seats and in tight compartments

Will this tank work with my outboard and different fuel types?

The 3-gallon capacity suits small outboards, trolling motors, and as a reserve tank for day trips. The polymer construction is compatible with gasoline, ethanol blends, and diesel, making it versatile for mixed marine fleets.

• 3-gallon (11.4 L) capacity ideal for small boats and dinghies
• Compatible with gasoline, ethanol-blended fuels, and diesel
• Works with standard marine fittings and typical small outboards
• Dimensions 19.3" L x 12.2" W x 6.8" H for under-seat storage

Who is this for? Anglers, weekend boaters, and small craft operators who need a dependable, transportable fuel solution will appreciate the Scepter 3-Gallon Portable Marine Gas Can. It’s aimed at users who want a corrosion-free tank that fits beneath seats, offers easy fuel monitoring, and complies with EPA and CARB regulations—especially useful on small fishing boats, dinghies, kayaks with motor mounts, and as a compact auxiliary tank.