Sea-Dog Line 520820 Thru Hull Fitting with Stainless Steel Cap

The Sea-Dog Line 520820 is a durable thru-hull fitting designed to allow water to pass in or out of a vessel for drainage applications above the waterline. This marine-grade fitting features a robust injection-molded polypropylene body paired with a corrosion-resistant 304 stainless steel cap, providing long-lasting performance in harsh marine environments.

Key Features:

• Injection-molded polypropylene body for strength and chemical resistance
• 304 stainless steel stamped cap resists corrosion in saltwater conditions
• Designed for use with hose connections for above-waterline drainage systems
• Compact design with multiple connection points for versatile installation
• Ideal for livewell drains, bilge pump outlets, and scupper applications

Specifications:

• Dimension A (Overall Length): 1-7/8"
• Dimension B (Thread Length): 7/8"
• Dimension C (Cap Diameter): 1-3/4"
• Dimension D (Flange Diameter): 3-3/8"
• Dimension E (Body Height): 1-3/16"
• Dimension F (Hose Barb Diameter): 5/8"

This thru-hull fitting provides a reliable solution for marine plumbing needs, combining the affordability of polypropylene construction with the durability of stainless steel hardware. Perfect for boat builders, marine technicians, and boat owners performing maintenance or upgrades to their vessel's water management systems.