Attwood 8803LP2 3-Gallon Portable Marine Fuel Tank - Compact

In this review of the Attwood 8803LP2 3-gallon portable marine fuel tank, the bottom line is clear: this is a compact, regulation-compliant tank built for small boats and decoy rigs where space and legal certification matter. The reviewer found the tank's EPA and CARB certification and automotive-grade construction to be the single biggest reasons to choose it, delivering confidence for use in areas with strict emissions rules while remaining easy to stow and handle.

Key Features

• Automotive-grade construction: Multi-layer materials withstand pressure build-up associated with closed fuel systems and reduce permeation compared with single-layer tanks.
• Built-in vacuum valve cap: The cap's vacuum valve eliminates the need for manual venting, simplifying use and reducing handling steps on the water.
• 14-in NPT compatibility: Accepts standard 14-in NPT fuel fittings so it connects easily to common marine fuel lines and accessories.
• EPA and CARB certified: Meets federal and California emissions regulations, making it legal for use in regulated waters without modification.
• ABYC/NMMA compliance: Designed to comply with portable marine tank standards, offering peace of mind for safety and fleet use.

Who It's For

This tank is best for owners of small outboard boats, jon boats, and duck hunting boats who need a small, compliant fuel source that is easy to store and transport. Its compact 3-gallon capacity and certification make it suitable for anglers and casual boaters operating in regions with CARB rules.

Boaters who need larger ranges or who frequently refuel on long trips should look elsewhere for higher capacity solutions. Also, teams that require active venting or operate in consistently hot climates should be aware of potential swelling reported by other users and consider tanks with explicit venting designs.

Pros & Cons

Pros

• Well-built multi-layer construction provides sturdy feel and resistance to pressure in closed systems.
• Certification to EPA and CARB standards makes it suitable for regulated areas without extra modification.
• Cap with built-in vacuum valve simplifies use by reducing manual venting steps.

Cons

• Some users report swelling in hot conditions and occasional concerns about fuel leakage at seams or the tank base, so careful inspection and handling are advised.

Specifications

Capacity	3 gallons
Certifications	EPA and CARB certified
Construction	Automotive-grade, multi-layer
Fitting compatibility	14-in NPT fuel fittings
Ventilation	Cap with built-in vacuum valve (no manual venting)
Standards	ABYC and NMMA compliance for portable fuel tanks

Our Verdict

The Attwood 8803LP2 is a sensible choice for small-boat owners who value certification and compact packaging; its EPA and CARB compliance and robust construction make it a reliable, legal option for short-range use. Be mindful of reported swelling in hot storage and inspect seams for any leakage, but for those needing a portable, regulation-ready 3-gallon tank it represents good value.

Frequently Asked Questions

Is this tank legal for use in California?
Yes. The tank is certified to meet EPA and CARB regulations and is intended for use where those rules apply.

Does the cap require manual venting?
No. The cap includes a built-in vacuum valve so manual venting is not required during normal operation.

Are there common durability concerns?
Some customers have reported swelling in hot conditions and occasional fuel seepage at seams or the base, so routine checks are recommended.