Attwood Marine Round Vented Deck Fill, Angled, 1-1/2 in Fill Hose, 5/8 in Vent Hose

Overview

The Attwood Marine International Round Vented Deck Fill is an angled deck-fill range for boats that need a combined fill and vent point in a round deck fitting. It is built around Attwood’s vented plastic deck-fill design, with configurations for diesel, water, and gasoline systems depending on the selected variant.

The fitting uses an integral tank vent with a flame arrestor and anti-surge technology. It also includes a waterproof screen that helps keep water from entering the system while still allowing tank venting. The range fits standard 1-1/2 inch fill hose and 5/8 inch vent hose, and installation requires four #8 screws.

This is a practical option for builders, refits, and replacement work where an angled deck fill is needed to suit hose routing under the deck. The round cap format keeps the deck layout familiar, while the imprint on the cap helps identify the tank connection at a glance.

Key features

• Angled round vented deck-fill design for installations where the hose route needs a cleaner approach under the deck.
• Integral tank vent with flame arrestor and anti-surge technology to help manage venting and reduce the chance of fuel escaping during surge conditions.
• Waterproof screen helps keep water out of the tank connection while allowing air flow through the vent path.
• Fits standard 1-1/2 inch fill hose and 5/8 inch vent hose for common marine tank plumbing layouts.
• Cap imprint identifies the intended service, with Diesel, Water, or Gasoline markings depending on the variant.
• CE certified to ISO 10088 and built to meet ABYC and US Coast Guard safety standards for marine fuel systems.
• Includes a stainless steel beaded chain to help keep round Gasoline, Diesel, and Water caps from being misplaced on board.
• Installs with four #8 screws, which keeps the mounting pattern straightforward for OEM work and deck-fill replacement.

Variants

This product is offered in multiple configurations for different deck finishes, cap imprints, and market regions.

The variants change by cap material, service imprint, and regional availability. The round angled vented deck-fill layout, deck plate key, 1-1/2 inch fill hose connection, and 5/8 inch vent hose connection remain consistent across the listed configurations.

• 99201DS1: Stainless steel, Diesel imprint, Global region. The Diesel imprint gives a clear deck-level identifier for diesel fuel filling points on cruising boats, workboats, and other diesel-powered vessels.
• 99201WS1: Stainless steel, Water imprint, Global region. The Water imprint helps separate potable or onboard water filling from fuel connections during dockside service.
• 99201GZ1: Chrome, Gasoline imprint, Not For U.S./Canada region. The Gasoline imprint marks the deck fill for gasoline fuel systems, while the chrome finish suits deck areas where a brighter cap appearance is preferred.
• 99201WZ1: Chrome, Water imprint, Global region. The Water imprint supports quick identification during filling, and the chrome finish gives the cap a brighter look on exposed deck hardware.

Installation and fit

Plan the installation around the hose path below the deck before cutting or replacing an existing fill. The angled body can help where the tank connection is offset or where a straight fitting would put too much bend into the fill hose.

Use the correct hose type for the system being served and confirm the imprint matches the tank connection before final mounting. The 1-1/2 inch fill hose and 5/8 inch vent hose sizes should be checked against the vessel’s existing plumbing, especially on older boats or refits with non-original tank hardware.

Use cases on board

This deck fill suits boat builders and owners replacing or standardizing fill points for fuel or water systems. It is especially useful where deck space is limited and an angled fitting gives a better hose run below the surface.

The marked cap is helpful on boats with several deck fills close together, such as fuel, water, and waste points placed along the side deck or cockpit coaming. Clear labeling reduces confusion during fueling or water fill-ups at the dock.

What’s included

• Deck plate key