These models are made of stainless steel and they cannot be closed, so that they will ensure permanent ventilation. This model has a translucent centre to allow light through.
These ventilators are rain and splash proof and the outside is high-gloss polished. They may also be used in combination with our electric extraction ventilators (FAN12/24). They come complete with a mosquito screen and an interior finishing ring as standard.
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![Shakespeare 4187HD Stainless Steel Heavy Duty Ratchet Mount [4187HD]](https://www.marinerailparts.com/wp-content/uploads/2026/10/shakespeare-4187hd-stainless-steel-heavy-duty-ratchet-mount-4187hd.webp)
