Attwood Marine Portable Fuel Tank, EPA/CARB, 1/4 in NPT, Multi-Layer HDPE/EVOH

Overview

This Attwood Marine portable fuel tank is an above-deck fuel tank range for outboard boats and other small-engine applications that need removable gasoline storage. The range covers 3, 6, and 12 gallon capacities, with gauge and no-gauge versions, so it can match anything from a small dinghy or kicker motor to a pontoon or utility boat that needs more reserve fuel on board.

Each tank uses multi-layer HDPE/EVOH construction to help reduce fuel vapor loss and handle the pressure build-up found in closed fuel systems. The tanks are compatible with 1/4-inch NPT fuel fittings and use an EPA-style cap with an automatic high-flow vacuum valve, so there is no manual vent screw to open or close before running the engine.

The range is built for portable marine use, with EPA and CARB compliance, ABYC/NMMA portable fuel tank requirements, and compatibility with ethanol-blended fuels. The 3 gallon size measures 16.6 in. L x 11.45 in. W x 7.3 in. H, the 6 gallon size measures 19.82 in. L x 13.5 in. W x 9.16 in. H, and the 12 gallon size measures about 22.75 in. L x 14.25 in. W x 14.47 in. H.

Key features

• Available in 3, 6, and 12 gallon capacities for matching fuel storage to the boat size, engine demand, and available deck or cockpit space.
• Gauge and no-gauge versions let the setup stay simple or add at-a-glance fuel level reading where that is useful.
• Compatible with 1/4-inch NPT fuel fittings for use with standard portable outboard fuel line setups.
• EPA cap with automatic high-flow vacuum valve removes the need for a manual vent screw during normal operation.
• Multi-layer HDPE/EVOH tank construction helps limit gasoline vapor permeation and supports use in closed fuel systems.
• Meets EPA and CARB requirements and complies with ABYC/NMMA requirements for portable marine fuel tanks.
• Compatible with ethanol-blended fuels, a practical detail for boats that refuel at roadside or marina gasoline pumps.
• Ergonomic carry handle makes the tank easier to move between storage, dock, tender, and boat.

Variants

This portable fuel tank range varies by fuel capacity and fuel gauge configuration. The 3 gallon versions suit small outboards, tenders, inflatables, jon boats, and auxiliary engines where compact storage matters. The 6 gallon versions give a common portable-tank size for many outboard setups. The 12 gallon versions fit boats that need more run time between refills, such as pontoons, skiffs, and utility boats with more deck space.

The gauge option is the main functional difference within each capacity. Versions with a gauge give a quick visual fuel-level check at the tank, while no-gauge versions keep the tank simpler for users who already track fuel by use, refill routine, or separate equipment. Core construction, fitting compatibility, vented cap design, and compliance details remain consistent across the range where confirmed for these models.

Installation and fit

This is a portable above-deck tank, so placement should allow the tank to sit level, stay secured while underway, and keep the cap and fuel connection accessible. The selected capacity should be checked against the actual storage area before purchase, especially on small boats where seat bases, lockers, battery boxes, and steering cables can limit usable space.

Fuel line is not included, so the installation should be planned around a compatible portable outboard fuel line assembly and the correct 1/4-inch NPT tank fitting. Thread sealant should be used when connecting fittings, and the tank should be secured so it cannot slide, tip, or rub against sharp hardware in chop or during trailering.

Use on board

This tank range is a good match for boaters who want a removable fuel supply for small outboards, tenders, fishing boats, auxiliary motors, or pontoon use. The closed-system cap and low-permeation tank construction are useful around cockpits, decks, and storage areas where fuel vapor, spray, UV exposure, and regular handling are part of normal boating.

For regular use, keep the tank out of standing water when possible, inspect the fuel fitting and cap seal before trips, and avoid overfilling so the tank has room for fuel expansion. A gauge version can make quick checks easier at the dock or ramp, while a no-gauge version works well for simple setups where the tank is refilled or measured before each run.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Orders of $100 or more qualify for free shipping when eligible. For orders under $100, shipping costs are calculated at checkout based on destination, package weight, and selected service. International shipping is available for eligible products, and certain items may require additional handling, warehouse transfers, or may ship directly from the manufacturer, which can affect processing time.

Deliveries are handled by preferred carriers such as USPS, UPS, FedEx, DHL, and others depending on your location and selected service. Estimated delivery times are displayed at checkout and may vary due to customs processing, carrier delays, weather, postal disruptions, or other circumstances beyond our control. Once your order ships, you'll receive a confirmation email with tracking information. Tracking may take up to 24 hours to update on the carrier's website and is also available through your account when applicable.

We ship throughout the United States and to most international destinations for products eligible for international shipping. International orders may be subject to customs duties, taxes, brokerage charges, or other import fees, which are the customer's responsibility and are not included in the product or shipping price. PO Boxes are accepted only when shipping through USPS, and not all packages qualify for this option. If your order does not arrive within the estimated delivery window, please contact us at info@apollolighting.com or +1 (954) 375-0100 so we can assist with locating your package.

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Returns may be requested within 30 days of receiving your order. Items must be unused, uninstalled, unaltered, and returned in their original packaging with all tags, packing materials, blank warranty cards, manuals, instructions, accessories, and included items. Certain products, including installed or used electronics, electrical components, lighting, consumables, custom or special-order items, cut-to-length products, safety equipment, and merchandise exposed to water or marine conditions, may not be eligible for return.

To request a return, sign in to your account and select the applicable order and items, and submit your request for review. Eligible unfulfilled items may also be submitted for cancellation within 1 hour of placing the order. Returns or cancellations are not considered approved until you receive confirmation from Apollo Lighting. Please do not ship or drop off merchandise before receiving return approval and instructions.

Customers are responsible for arranging and paying for return shipping unless the return is due to an error by Apollo Lighting or the item is verified as defective, damaged, or incorrect. Missing, damaged, defective, or incorrect items must be reported within 2 business days of delivery, and photos or other documentation may be required for review. If the issue is verified, Apollo Lighting may provide or reimburse return shipping and issue a replacement or refund depending on the circumstances. International customers are responsible for return shipping, duties, taxes, customs charges, brokerage fees, and other costs associated with an international return.

After your return is received and inspected, approved refunds are issued to the original payment method and may take 5-7 business days to appear after processing. Original shipping and handling charges are nonrefundable, and the value of any included free items that are not returned may be deducted from the refund. Apollo Lighting does not charge a standard restocking fee on eligible returns. Returns that are incomplete, damaged, installed, used, altered, improperly packaged, or otherwise do not meet the eligibility requirements may be refused. We recommend using a trackable and appropriately insured shipping service for all customer-arranged returns.

For assistance, contact info@apollolighting.com or call +1 (954) 375-0100.

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Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

Keep your receipt, product documentation, serial number information, and original packaging when practical. Damage caused by normal wear, misuse, improper installation, insufficient maintenance, corrosion, impact, unauthorized modifications, electrical issues, or operation outside the manufacturer's specifications may not be covered. Warranty claims are separate from standard returns, so a product that has been installed, used, or exposed to marine conditions may no longer qualify for return while still remaining eligible for evaluation under the manufacturer's applicable warranty.

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