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Sea-Dog Line 520833 90° Thru-Hull Fitting with Stainless Steel Cap

Manufacturer

Sea-Dog Line

<p>For over a century, Sea-Dog Line has stood as a cornerstone of the marine hardware industry, delivering innovative solutions that meet the demanding needs of recreational and commercial boaters. Founded in the early 1920s by entrepreneur Hans "Action" Broson Sneve, the company began with a unique sales approach—showcasing marine hardware aboard a 55-foot cruiser that sailed from Alaska to Mexico. This hands-on philosophy continues to shape Sea-Dog's commitment to producing hardware that performs reliably in the harshest saltwater environments.</p><h3>Industry-Leading Marine Hardware Manufacturing</h3><p>Based in Everett, Washington, Sea-Dog Corporation operates a 75,000-square-foot warehouse stocking over 8 million parts and runs an injection molding facility with 16 machines producing more than 17 million components annually. The company's extensive product line spans anchoring systems, deck hardware, electrical components, plumbing fittings, and lighting solutions—all engineered with marine-grade materials like stainless steel, brass, and UV-resistant polymers. Sea-Dog's recognition as a multiple-time NMDA Supplier of the Year underscores the brand's excellence in both product quality and customer service, while their on-staff ABYC-certified marine technician provides invaluable installation and technical support.</p><h3>Premium Marine Components for Every Vessel</h3><p>Sea-Dog's <a href="/7549-sea-dog-line-windshield-washers-wipers-replacement-motors-201195">windshield washers, wipers, and replacement motors</a> deliver crystal-clear visibility during inclement weather, with both manual and electric options featuring corrosion-resistant stainless steel arms and UV-stable blades designed specifically for marine windshield applications. Their <a href="/7549-sea-dog-line-electric-horns-200351">electric horns</a> include the popular MaxBlast line, which passed rigorous 600-hour salt spray testing while meeting US Coast Guard COLREGS and ABYC standards for audible warning devices. For fuel and water system integrity, Sea-Dog's <a href="/7549-sea-dog-line-deck-fills-200307">deck fills</a> provide secure, leak-free access points constructed from durable stainless steel with snap-in designs that resist corrosion in saltwater environments.</p><p>When maneuvering in low-light conditions, Sea-Dog's <a href="/7549-sea-dog-line-docking-lights-200335">docking lights</a> offer bright LED illumination with minimal power draw, featuring injection-molded housings that withstand impacts and temperature extremes. Proper airflow is essential for preventing moisture buildup below deck, and Sea-Dog's <a href="/7549-sea-dog-line-hose-and-cowl-vents-200534">hose and cowl vents</a> deliver reliable ventilation with low-profile designs that include snap-in deck plates for bilge applications or dorade box compatibility for cabin use. Each product reflects Sea-Dog's century-long dedication to manufacturing hardware that recreational and professional mariners can trust, voyage after voyage.</p>

Part Number

520833
06/13/2036 6:54 AM
Sale Price

$21.39

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Sea-Dog Line 520833 is a 90-degree thru-hull fitting designed to allow water to pass in or out of a vessel above the waterline. This marine-grade drainage fitting features a durable injection-molded polypropylene body with a corrosion-resistant 304 stainless steel cap for long-lasting performance in harsh marine environments.

Key Features:

  • 90-degree elbow design for efficient water drainage routing
  • Injection-molded polypropylene body for strength and chemical resistance
  • 304 stainless steel stamped cap resists corrosion and weathering
  • Designed for above-waterline drainage applications with hose connection
  • Precision dimensions: A: 1-7/8", B: 7/8", C: 1-13/16", D: 3-3/4", E: 1-15/16", F: 1-1/8"

This thru-hull fitting is ideal for cockpit drains, livewell drains, baitwell overflows, and other marine drainage applications where water needs to exit the hull above the waterline. The polypropylene construction provides excellent resistance to marine chemicals and UV exposure, while the stainless steel cap adds durability and a professional finished appearance.

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