#   Stainless Steel 12 Louvre Marine Vent Horizontal 227 x 115mm   405440

   [![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%2Fstainless-steel-12-louvre-marine-vent-horizontal-227-x-115mm.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%2Fstainless-steel-12-louvre-marine-vent-horizontal-227-x-115mm.html&media=https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/100x100/405440.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%2Fstainless-steel-12-louvre-marine-vent-horizontal-227-x-115mm.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%2Fstainless-steel-12-louvre-marine-vent-horizontal-227-x-115mm.html)

     [Previous](#)[Previous](#)[Previous](#) [![405440](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/300x300/405440.jpg "Stainless Steel 12 Louvre Marine Vent Horizontal 227 x 115mm")](https://www.rhsboating.com.au/images/com_hikashop/upload/405440.jpg "Stainless Steel 12 Louvre Marine Vent Horizontal 227 x 115mm")

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

   [![405440](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/300x300/405440.jpg "Stainless Steel 12 Louvre Marine Vent Horizontal 227 x 115mm")](https://www.rhsboating.com.au/images/com_hikashop/upload/405440.jpg "Stainless Steel 12 Louvre Marine Vent Horizontal 227 x 115mm")[![405440-1](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/300x300/chatgpt_image_sep_24_2026_09_02_48_am.jpg "Stainless Steel 12 Louvre Marine Vent Horizontal 227 x 115mm")](https://www.rhsboating.com.au/images/com_hikashop/upload/chatgpt_image_sep_24_2026_09_02_48_am.jpg "Stainless Steel 12 Louvre Marine Vent Horizontal 227 x 115mm")[![RHS-Boating-Marine-Sydney](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/300x300/RHS-Boating-Marine-Sydney.jpg "Stainless Steel 12 Louvre Marine Vent Horizontal 227 x 115mm")](https://www.rhsboating.com.au/images/com_hikashop/upload/RHS-Boating-Marine-Sydney.jpg "Stainless Steel 12 Louvre Marine Vent Horizontal 227 x 115mm")

    $12.23  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

    ### Stainless Steel 12 Louvre Vent Horizontal 227 x 115mm

Fit a pressed 304 stainless steel ventilation panel with 12 louvres and a 227 x 115mm footprint. This is the horizontal layout, so check its orientation against the intended opening.

The mounting holes are drilled for 4mm fastenings. Check their positions against the actual panel before reusing existing holes, and select fixings suitable for the supporting surface.

Code 405440 is identified by its 12-louvre arrangement. Compare the whole vent size with the available mounting area and keep the airflow path behind the louvres clear. Louvre count describes the panel layout; no numerical airflow capacity is specified for this fitting.

### Choosing and using this product

For this version, size: 227 x 115mm. Use that specific detail when comparing the item with your existing equipment or planned installation. Other sizes and configurations in the range should be checked separately rather than treated as equivalent.

Include the attachment points in routine boat inspections. Keep moving or seating surfaces clear where applicable, and follow the product’s care instructions for its material and finish. Retaining the size and part code is useful when replacing another fitting elsewhere on the boat.

The listed material, finish and dimensions help you select a version that suits the job and surrounding fittings. Measure the actual location rather than relying on a familiar-looking shape. Small differences in projection or spacing can change how comfortably the completed arrangement works.

Check the stated supply quantity and inclusions when ordering. Some listings describe an individual component, while others supply a pair, pack or complete assembly. Match any additional fixings and supporting parts to the installation requirements rather than assuming they accompany the visible fitting.

Consider how the fitting will be used in the normal boat layout. Allow room for hands, tools and any intended movement, and check that it does not obstruct an access opening or another control. Offer the parts into position before marking or making permanent changes.

### Product details

- Pressed 304 grade stainless steel vent with 12 louvres.
- Holes drilled for 4mm fastenings.
- Size: 227 x 115mm.
- Orientation: Horizontal.
- Product code: 405440