This Sam Allen 25mm Rubber Plug suits a standard marine sink waste with a 25mm or 1 inch opening, so you can block off the drain and fill a shallow bowl to around 150mm deep for washing up. The compact plug drops straight into a circular seat sized close to 25mm across, which makes it handy on small boats where bench space and sink size are both tight.

The rubber body matches a 25mm outlet to help limit water slipping past under normal galley loads, and it pairs with sink wastes that have seating rims under about 5mm high. A metal pull ring with an internal width of roughly 25mm gives you room for a couple of fingers, even with wet hands. Overall weight sits well under 100g, so the plug is light enough for thin stainless or plastic camper and boat sinks.

• Sam Allen 25mm rubber sink plug
• Suits standard 1" / 25mm sink waste outlets
• Listed as plug only, no waste fitting included
• Rubber body helps seal small marine sink outlets
• Compact profile suits shallow galley or cockpit sinks
• Ring pull handle for straightforward removal by hand
• Ideal spare plug for boat or camper sink setups
• Lightweight design suitable for stainless or plastic sinks
• Part number 50411 for easy reordering

Q: Is this plug supplied with a matching sink waste fitting?

No, this is the plug only. This gear is made to drop into an existing 25mm waste fitting on your sink. If your boat or van does not already have a 25mm waste installed, you will need to buy that separately. The plug simply sits in the outlet and does not include threads or mounting hardware.

Q: Will a 25mm plug work in a larger 32mm or 40mm sink outlet?

No, it is suited to 25mm outlets only. A plug that is smaller than the waste will not seal properly, so water will drain straight past it. Check the outlet size on your sink or existing waste fitting before ordering. If the outlet is larger than 25mm, you will need a different size plug.

Q: Can this 25mm rubber plug be used in non‑marine sinks?

Yes, if the waste opening is 25mm. The plug is listed under marine sink waste accessories, but the size is the key factor. As long as the drain seat is close to 25mm and has a flat sealing edge, the plug can work in galley, camper, or utility sinks. Always confirm the measurement before relying on the seal.

Q: How should I look after a rubber sink plug like this?

Rinse it and store it dry when possible. A quick freshwater rinse after use helps reduce soap and salt buildup on the rubber. Letting the plug dry before long‑term storage can slow down cracking and stiffness. Keeping it out of prolonged direct sunlight when not in use can also help the rubber last longer.