T-H Marine DP-1-DP Self-Retaining Screw-Type Boat Drain Plug, Polypropylene, Fits 1" Hole, Black

This T-H Marine DP-1-DP drain plug is a self-retaining screw-type plug constructed from durable polypropylene with an O-ring seal for reliable, vibration-resistant sealing. Ideal for boat transoms, fish wells, bait tanks, water tanks, coolers, and ice chests, the plug installs quickly and stays attached to prevent loss. The plug secures with two No. 8 countersunk stainless steel screws (not included) and provides a positive waterproof flange with a sealant groove. Retained design and chemically inert O-ring ensure leak-free performance under vibration. Includes one drain plug. Manufacturer offers a limited warranty.

• Versatile application – Ideal for transoms, livewells, bait tanks, coolers, water tanks, and more.
• Rugged marine-grade construction – Made from polypropylene for durability and corrosion resistance.
• Waterproof flange design – Built-in sealant groove ensures positive waterproof mounting.
• Installs in standard 1 in hole – Secures with two No. 8 countersunk stainless steel screws (not included).
• Threaded seal with O-ring – Chemically inert O-ring and tight threads provide leak-free performance under vibration.
• Self-retaining design – Plug stays attached to prevent loss or accidental drops during use.