Sea-Dog Line 520740 Thru-Hull Fitting 5/8 Inch Polypropylene

The Sea-Dog Line 520740 is a durable thru-hull fitting designed for marine drainage applications above the waterline. This 5/8-inch fitting is specifically engineered for saltwater environments where corrosion resistance is critical.

Key Features:

• Constructed of injection-molded polypropylene for maximum durability
• Impervious to electrolysis and corrosion in saltwater conditions
• Designed for above-waterline drainage applications
• 5/8-inch size for use with standard marine hose
• Allows controlled water passage in or out of the vessel
• Lightweight, non-corrosive alternative to traditional metal fittings

Ideal for bilge pump discharge, livewell drains, washdown systems, and other marine applications requiring a reliable, corrosion-free thru-hull connection. The polypropylene construction ensures long-lasting performance without the galvanic corrosion issues associated with metal fittings in saltwater environments.