Durable, corrosion-resistant construction: molded plastic body with stainless-steel components resists rust and wear, making the plug suitable for repeated use in wet or salty conditions. Adjustable, universal fit: the expandable design adapts to a wide range of drainage hole sizes. Various size, color-coded options make it easy to match the correct plug for your drain without guesswork. Easy to use: the T-shaped handle provides a comfortable grip for quick, tool-free installation and removal. Install or remove the plug in seconds when you need to seal or open a drain. Secure sealing: designed to create a reliable seal in standard drainage openings, preventing unwanted water flow or ingress when closed and allowing controlled drainage when removed. Practical and modern: a functional accessory that blends into marine and outdoor equipment while improving usability and maintenance. Typical applications Boats and kayaks: plug cockpit or bilge drains during transport or maintenance to prevent water ingress. RVs and outdoor sinks/drains: seal drainage openings during cleaning, storage, or when parked. Docks, pontoons, and portable water gear: use where a corrosion-resistant, removable drain solution is required. What you get Corrosion-resistant materials for longevity Adjustable fit with color-coded sizing for quick selection Ergonomic T-handle for fast, reliable operation This drainage plug delivers a simple, durable solution for sealing and accessing standard drains in marine and outdoor environments.