Boat Deck Filler Cap | Stainless Chain & O-Ring Seal

Boat Deck Filler with Stainless Steel Chain & O-Ring Seal

Keep your fuel, water, or diesel top-up safe, secure, and leak-free with this heavy-duty Boat Deck Filler Cap. Built from high-grade ABS plastic with a stainless steel chain and a precision O-ring seal, this deck fill is engineered for demanding marine, RV, and commercial vehicle applications. Whether you're topping off fuel on a yacht or refilling water on a trailer, this versatile filler cap has you covered.

Made in Mainland China.

Key Features

• Durable ABS Construction: Crafted from high-grade ABS plastic designed to withstand harsh marine environments, UV exposure, and temperature extremes.
• Leak-Proof O-Ring Seal: The included O-ring creates a watertight, airtight seal every time the cap is closed — no more worrying about spills or contamination.
• Stainless Steel Chain: The cap and body are connected by a corrosion-resistant stainless steel chain so the cover is always attached and never gets lost overboard.
• Easy Identification: The sanded-finish cap is boldly marked "FUEL," making it quick and easy to identify the correct filler point even in low-light conditions.
• Wide Compatibility: Fits standard 1-1/2 inch hoses and is suitable for boats, yachts, RVs, trucks, tractors, and trailers. Works for fuel, gasoline, water, and derv refills.
• Ideal for Marine Use: Specifically designed for the sea — handles salt air, moisture, and the rigours of open-water conditions with ease.

Specifications

Package Contents

• 1 × Fuel Filler Cap with Stainless Steel Chain & O-Ring

Note: Please verify the product dimensions and hose compatibility before purchasing. Manual measurements may allow for minor tolerances.

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Safety & Standards

For guidance on safe fuel handling aboard recreational vessels, refer to the U.S. Consumer Product Safety Commission's Boating Safety Guide.

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Frequently Asked Questions

Q: What hose size is this boat deck filler compatible with?

A: This deck filler cap is designed to fit standard 1-1/2 inch hoses, which are common on most recreational boats, yachts, RVs, trucks, tractors, and trailers. Always verify your hose diameter before purchasing.

Q: Can this deck filler be used for water as well as fuel?

A: Yes! This versatile deck fill cap is suitable for fuel, gasoline, water, and derv (diesel) applications, making it a multi-purpose solution for a wide range of marine and land vehicles.

Q: Will the stainless steel chain rust in saltwater marine environments?

A: The chain is made from stainless steel, which is specifically chosen for its excellent corrosion resistance in saltwater and humid marine conditions, ensuring long-lasting reliability on the water.

Q: Does the O-ring create a fully watertight seal?

A: Yes. The included O-ring is designed to form a tight seal when the cap is closed, effectively preventing leaks, fuel vapour escape, and water ingress — crucial for safety and performance on the water.