Sea-Dog Line 520021-5 Replacement Nylon Drain Plug 1 Inch 30 Pack

The Sea-Dog Line 520021-5 is a molded nylon replacement drain plug designed for marine applications requiring a reliable, watertight seal. This 30-piece pack provides excellent value for boat builders, marinas, and vessel owners who need multiple replacement plugs.

Key Features:

• Molded nylon construction for durability and corrosion resistance in marine environments
• Designed to fit securely in 1-inch diameter holes without requiring additional fasteners
• Integrated ridge design on the plug body provides secure retention and prevents accidental removal
• Simple installation—just apply marine sealant and insert for a watertight seal
• Convenient 30-piece pack for multiple installations or replacements

These drain plugs are ideal for bilge drains, livewell drains, bait tank applications, and other marine drainage points. The self-retaining ridge design eliminates the need for threaded fittings or additional hardware, making replacement quick and easy. For best results, apply marine-grade sealant around the plug before installation to ensure a completely watertight seal.