Attwood Marine In-Line Fuel Overflow Protector, 5/8 in Hose, ABYC H-24, Ball-Style Check Valve

Overview

The Attwood Marine 1675-6 is an in-line fuel overflow protector for traditional fuel tank vent systems that use standard 5/8" ID vent hose. It installs in the vent line rather than the fill hose and uses a ball-style check valve with internal baffling to interrupt the fuel surge that can push out through the vent during refueling. It meets ABYC H-24 and measures about 4-11/16" long, which helps when the vent run is tucked inside the gunwale or another tight space.

As the tank nears full, it helps automatic fuel nozzles shut off before fuel spills from the vent. When refueling with a non-automatic nozzle, it creates a gurgling warning so the tank does not get topped off blindly. The body withstands oil, gasoline, and alcohol-blended fuels, and it can be mounted in any orientation within 45 degrees of vertical.

Key features

• Fits traditional marine fuel tank vent systems that use standard 5/8" ID vent hose
• Ball-style check valve with internal baffling helps stop vent-line surge during refueling
• Helps automatic fuel nozzles shut off as the tank approaches full
• Produces a gurgling warning with non-automatic nozzles when the tank is near capacity
• Operates within 45 degrees of vertical, which gives more flexibility in tight vent runs
• Glass-filled polypropylene body withstands oil, gasoline, and alcohol-blended fuels
• Meets ABYC H-24

Compatibility and fit

This unit is for boats with a traditional vented fuel tank and a 5/8" inside-diameter vent hose. It is not a deck fill, a fill hose fitting, or an exterior vent fitting by itself. It is the in-line device that sits between sections of the vent hose to manage surge as the tank fills.

It is a sensible match for boats that are regularly fueled at marina pumps and for installations where the vent hose runs behind the hull side or inside the gunwale. The compact body helps when there is not much straight hose length available, but the mounting angle still needs to stay within the allowed range.

Installation and setup

Installation is straightforward: cut the vent hose, place the protector in line with the vent side oriented correctly, and secure the hose with the supplied clamps. Before fitting it, check the hose route and confirm there is enough access to keep the unit within 45 degrees of vertical once the hose is supported and the paneling is back in place.

For buyers trying to solve fuel spitback from the vent during normal refueling, this is the part that addresses that problem without changing the deck fill hardware. It suits owners who want cleaner fill-ups and a clearer warning as the tank reaches capacity.

What’s included

• In-line fuel overflow protector
• 2 hose clamps

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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