#   Large Marine Drain Plug and Housing White – Boat Plumbing Fittings   400385

   [![Twitter](https://www.rhsboating.com.au/media/com_hikashop/images/icons/twitter_icon.png)Twitter](https://twitter.com/intent/tweet?url=https%3A%2F%2Fwww.rhsboating.com.au%2Fcategories%2Flarge-marine-drain-plug-and-housing-white-boat-plumbing-fittings.html)[![Pinterest](https://www.rhsboating.com.au/media/com_hikashop/images/icons/pintinterest_icon.png)Pinterest](http://pinterest.com/pin/create/button/?url=https%3A%2F%2Fwww.rhsboating.com.au%2Fcategories%2Flarge-marine-drain-plug-and-housing-white-boat-plumbing-fittings.html&media=https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/100x100/400385.jpg)[![Facebook](https://www.rhsboating.com.au/media/com_hikashop/images/icons/facebook_icon.png)Facebook](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.rhsboating.com.au%2Fcategories%2Flarge-marine-drain-plug-and-housing-white-boat-plumbing-fittings.html&display=page)[![Linkedin](https://www.rhsboating.com.au/media/com_hikashop/images/icons/linkedin_icon.png)Linkedin](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Fwww.rhsboating.com.au%2Fcategories%2Flarge-marine-drain-plug-and-housing-white-boat-plumbing-fittings.html)

     [Previous](#)[Previous](#)[Previous](#) [![400385](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/300x300/400385.jpg "Large Marine Drain Plug and Housing White – Boat Plumbing Fittings")](https://www.rhsboating.com.au/images/com_hikashop/upload/400385.jpg "Large Marine Drain Plug and Housing White – Boat Plumbing Fittings")

 [Next](#)[Next](#)[Next](#)

   [![400385](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/300x300/400385.jpg "Large Marine Drain Plug and Housing White – Boat Plumbing Fittings")](https://www.rhsboating.com.au/images/com_hikashop/upload/400385.jpg "Large Marine Drain Plug and Housing White – Boat Plumbing Fittings")[![400385-1](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/300x300/chatgpt_image_sep_24_2026_09_02_48_am.jpg "Large Marine Drain Plug and Housing White – Boat Plumbing Fittings")](https://www.rhsboating.com.au/images/com_hikashop/upload/chatgpt_image_sep_24_2026_09_02_48_am.jpg "Large Marine Drain Plug and Housing White – Boat Plumbing Fittings")[![RHS-Boating-Marine-Sydney](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/300x300/RHS-Boating-Marine-Sydney.jpg "Large Marine Drain Plug and Housing White – Boat Plumbing Fittings")](https://www.rhsboating.com.au/images/com_hikashop/upload/RHS-Boating-Marine-Sydney.jpg "Large Marine Drain Plug and Housing White – Boat Plumbing Fittings")

    $12.86  each

            Brand: [RHS Boating & Marine – Boat Parts, Marine Accessories & Boating Supplies](https://www.rhsboating.com.au/brands-listing/category/rhs-boating-marine-boat-parts-marine-accessories-boating-supplies.html)

 [+](#)

 [–](#)

 The add to cart button will appear once you select the values above

    ### Large Drain Plug and Housing White

Choose large drain plug and housing - white to match the drain fitting on your boat. This listing combines the plug and housing, so both mating components can be selected together.

This large assembly is made from UV-resistant marine-grade nylon and requires a 50mm hole. The black and white versions provide a colour choice while retaining the same listed hole size. Check the housing profile and mounting area as well as the hole diameter.

This is the bulk supply version. Where a prepacked alternative is available, it has a separate product code; use the listed packaging details to choose the intended format.

Inspect the existing housing and sealing surfaces when replacing a drain plug. Confirm the correct fit before use rather than assuming that every marine bung shares the same dimensions.

### Choosing and using this product

Keep service points accessible and follow the relevant system instructions for fastening, sealing and hose support. Avoid forcing a hose or thread to compensate for an unsuitable fitting. Confirm the finished connection and normal system operation before putting the installation back into use.

For a replacement, inspect the existing fitting and adjoining hose before ordering. Consider the direction of the connection as well as its size. An elbow, straight fitting or barbed tail changes the route and clearance needed even when the nominal connection size is similar.

When comparing alternatives, use the specified material and intended application rather than assuming every marine fitting is suitable for every liquid. Keep the part reference with the plumbing records so future spares can be matched to the connection actually installed.

Check the stated contents when putting together the plumbing run. A fitting-only listing does not necessarily include hose, clamps, seals or a mounting assembly. Lay out the required connections before installation so the finished arrangement can be checked as a whole.

### Product details

- High quality UV resistant marine grade nylon large drain plug and housing.
- White.
- Hole diameter 50mm.
- Bulk only, unpackaged.
- Product code: 400385