Skip to content
Now offering free shipping on all orders over $99! See details.
Now offering free shipping on orders over $99!

316 Stainless Steel Boat Deck Fill – Marine Water & Fuel Filler with Key Lock & Chain

Original price $19.90 - Original price $19.90
Original price
From $19.90
$19.90 - $19.90
Current price $19.90
Availability:
100 in stock, ready to be shipped
Availability:
100 in stock, ready to be shipped
Availability:
100 in stock, ready to be shipped
Availability:
100 in stock, ready to be shipped
Availability:
100 in stock, ready to be shipped
Availability:
100 in stock, ready to be shipped

14-Day Return PolicyYou have 14 days after receiving your item to request a return. Return shipping costs are the customer’s responsibility unless the item is damaged, defective, or incorrect.

Leaking deck fills, missing caps, and corroded fittings are among the most common — and most preventable — problems on any boat. This 316 stainless steel marine deck fill solves all three. A stainless steel bead chain keeps the key-lock cap permanently attached so it can never be lost overboard, while the flip-cap versions offer tool-free one-hand access. Built from marine-grade 316 SS with a polished finish, it resists saltwater corrosion, UV degradation, and heavy use season after season. Available in Gas, Fuel, Diesel, and Waste versions — clearly labeled to prevent cross-contamination and misfueling.

🔺 Product Details

Key Features

  • 316 Marine-Grade Stainless Steel — Superior corrosion resistance; outlasts 304 SS in saltwater and coastal environments
  • Key-Lock Cap — Secure, tool-operated opening prevents accidental misfueling and unauthorized access
  • Stainless Steel Bead Chain — Cap permanently tethered to body; never lost overboard
  • Labeled Versions — Available as WATER or FUEL/DIESEL/GAS to prevent cross-contamination
  • Flush Deck Mount — Sits level with deck surface; 3-screw flange for secure installation on fiberglass, aluminum, or wood
  • Ribbed Hose Barb — Secure hose connection; compatible with standard marine fill hose
  • Polished Mirror Finish — Premium look; easy to clean and maintain

Applications

  • Boat and yacht fresh water tank fills
  • Marine fuel, diesel, and gas tank deck fills
  • RV and camper water/fuel access ports
  • Pontoon and fishing boat deck hardware

Available Models

  • Water Filler — SKU: 316-MarineDecFill-Water | Labeled WATER | For fresh water tanks
  • Fuel / Diesel / Gas Filler — SKU: 316-MarineDecFill-Fuel | Labeled DIESEL/FUEL/GAS | For fuel
🔺 Specifications & Installation

Specifications

  • Material: 316 Marine-Grade Stainless Steel
  • Finish: Mirror polished
  • Cap Lock: Key-operated (key included)
  • Cap Retention: Stainless steel bead chain
  • Flange Diameter: 74mm
  • Hose Barb OD: 39mm
  • Overall Length: 78mm
  • Screw Hole Diameter: 6mm
  • Bolt Circle Diameter: 45mm
  • Weight: 372g
  • Mount: 3-screw flush deck flange
  • Compatible with: Fiberglass, aluminum, wood decks
  • Origin: China
Why Choose ROQIFY

Why Choose ROQIFY

Backed by over 10 years of manufacturing and export experience, ROQIFY is committed to providing reliable RV and marine solutions trusted by customers worldwide
10+ Years Industry Experience
Exported to 100+ Countries Worldwide
Reliable Quality Control & Testing
Competitive Factory Direct Pricing
Professional OEM & ODM Support
Fast Response & Customer Service
Trusted by RV & Marine Customers Globally
ROQIFY®
Powered by Jiangsu Yumu Electromechanical Co., Ltd.
Reliable Solutions for RV & Marine Living.

Free Shipping

On small accessories orders over $99-$159

Here to Help

Get in touch with us 7 days a week

10+ YEARS EXPERIENCE

Trusted marine & RV accessories supplier

AFTER-SALES SUPPORT

Professional service you can rely on