Conical Stainless Drain Plug with Base (Ø25 mm)

This conical stainless steel drain plug provides an innovative solution for quick sealing of your boat’s drain hole. Instead of a traditional screw-in action, the tapered plug is simply pushed into its base where it wedges securely, creating an instant watertight seal. This makes both closing and opening the drain extremely fast – a single quick motion does the job. Once inserted, the plug is held in place by friction and the compression of its O-ring, ensuring a 100% leak-proof fit. There are no complex moving metal parts to rust or wear out; the entire unit is made of Inox stainless steel, promising a long service life and trouble-free operation. It’s an excellent choice for boat owners seeking a premium, efficient solution for manual bilge drainage.

• Design & Operation: The conical plug is engineered to tighten and seal as it is pushed into the matching socket. This self-seating, tapered design prevents the plug from popping out under pressure and eliminates the need for threads or locking levers. The result is an immediate stop of water ingress with just one hand motion
• Use Cases: Ideal for boats around 5–7 meters and larger that have drain openings in the transom or hull bottom. For example, sailing yachts, workboats, and motorboats that require periodic manual bailing – whether from rain, waves, or after a trip. With this plug, you can easily control bilge water without relying on electrical pumps, which is useful for simplicity and as a backup system
• Installation: The plug’s base is mounted permanently to the hull (typically screwed or bolted through pre-drilled holes in the flange). It is designed for a standard drain size of approximately 25 mm, fitting most common small-to-medium boat drain holes. When installing, it’s recommended to apply marine sealant beneath the flange for a completely watertight installation
• Advantages: With no threaded parts, there’s minimal maintenance – nothing to clog with debris or salt, and nothing that can seize up. The stainless steel build means neither the base nor the plug will corrode or crack even under extreme temperatures or impact. The rubber gasket (O-ring) is replaceable if ever needed and consistently ensures no water can leak past the plug when in place
• Practical Benefits: Even in cold weather or with wet hands, the tapered shape is easy to grip – just pull the plug out to open the drain. This plug is extremely convenient for quick action, for instance, if you need to suddenly release water that has come on board from rain or a wave. Its simple yet effective design is favored by skippers who want reliability and tool-free ease of use in an emergency or for routine draining