My Account
Shopping Cart

Sea-Dog Line 3570341 Keyless Deck Fill Assembly - Waste (Black)

Manufacturer

Sea-Dog Line

<h3>About Sea-Dog Line</h3><p>Few names in the marine industry carry as much history as <strong>Sea-Dog Line</strong>. Founded in 1923 and headquartered in Everett, Washington, Sea-Dog has spent over a century engineering and supplying dependable hardware for boaters, riggers, and marine professionals. Whether you are outfitting a small fishing boat or a serious offshore vessel, Sea-Dog's expansive catalog — spanning more than 2,400 products — is built around one principle: hardware that holds up when it matters most.</p><h3>A Century of Marine Innovation</h3><p>Sea-Dog Line began as a focused marine rigging and hardware supplier, and over the decades grew into one of the most comprehensive sources for anchoring, docking, boarding, and boat-management equipment in the industry. Their product line has expanded to include antenna accessories, trailer hardware, boat hooks, cabinet and hatch fittings, chain and rigging components, and a wide range of electrical accessories — all engineered to withstand the corrosive, high-stress environment of the marine world.</p><p>What sets Sea-Dog apart is a commitment to manufacturing quality that boat owners can rely on season after season. Their hardware is designed for real-world marine use, meaning saltwater resistance, UV stability, and structural durability are never afterthoughts.</p><h3>Marine Visibility & Windshield Systems</h3><p>One of Sea-Dog's highest-demand product areas is their line of <a href="/7549-sea-dog-line-windshield-washers-wipers-replacement-motors-201195">Windshield Washers, Wipers &amp; Replacement Motors</a>. Maintaining clear visibility on the water is a safety-critical function, and Sea-Dog supplies a broad assortment of wiper blades, washer systems, and complete replacement assemblies designed to fit a wide variety of marine windshield configurations. For boaters who need a direct drive solution, Sea-Dog's dedicated <a href="/7549-sea-dog-line-windshield-wiper-motor-8824">Windshield Wiper Motors</a> offer reliable performance in wet, high-vibration marine environments — a category where component quality directly affects on-water safety.</p><h3>Cockpit Comfort & Functionality</h3><p>Beyond hardware and visibility systems, Sea-Dog also brings practical innovation to the helm and cockpit with their <a href="/7549-sea-dog-line-cockpit-fillet-tables-200274">Cockpit &amp; Fillet Tables</a>. These tables are designed to maximize usable space aboard, whether you are prepping a catch, serving guests, or simply organizing gear. Sea-Dog's tables reflect the same build philosophy as all their hardware: functional, durable, and thoughtfully designed for the marine setting.</p><h3>Why Boaters Trust Sea-Dog Line</h3><ul style="list-style:disc"><li>Over 100 years of marine hardware expertise dating back to 1923</li><li>Headquarters in Everett, Washington, with a deep understanding of Pacific Northwest and offshore boating demands</li><li>A catalog of more than 2,400 products spanning virtually every marine hardware category</li><li>Products engineered for saltwater, UV exposure, and the vibration of on-water use</li><li>Trusted by recreational boaters, commercial operators, and marine riggers alike</li></ul><p>From rigging essentials to cockpit accessories and windshield systems, Sea-Dog Line remains one of the most complete and dependable marine hardware brands available today. Explore their full product range and find the right Sea-Dog components for your vessel.</p>

Part Number

3570341
09/16/2036 8:16 AM
Sale Price

$17.74

In Stock (10+)

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sea-Dog Line 3570341 is a complete keyless hose deck fill assembly designed specifically for waste systems on marine vessels. This innovative deck fill features a built-in key integrated into the cap, eliminating the need for separate tools during refueling or tank access operations.

Key Features:

  • Constructed of fiberglass-filled injection molded nylon for superior durability and corrosion resistance
  • Contains no metal components and does not require grounding to the boat's electrical system
  • Built-in hinged key locks in the upright position for easy opening and closing, then recesses into the cap for a flush, streamlined surface
  • Color-coded black cap clearly marked "Waste" to prevent dangerous cross-contamination between fuel, water, and waste tanks
  • Cap diameter: 1-7/8 inches with 12 NPSM straight thread pitch
  • Designed for use with 1-1/2 inch hose connections

Installation:

  • Installs with three #10 flat head fasteners (not included)
  • Connects to reservoir via appropriate marine-grade hose (sold separately)
  • Not compatible with pressurized oil injection systems

The keyless design provides convenient cap removal without fumbling for tools, while the recessed key feature maintains a clean deck appearance. The fiberglass-filled nylon construction ensures long-lasting performance in harsh marine environments without the weight and corrosion concerns of metal alternatives. Color-coding helps prevent costly and potentially dangerous mistakes when servicing different tank systems on your vessel.

Very easy to use your website.

great company

Very easy transition!

have parts in stock

As described good shipping time

PROVIDED EXTENDED LENGTH. THAT DID IT!

The part is a match and it arrived in a timely manner.

Quick delivery and exactly as described.

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy