This large ventilation grille (210 x 108 mm) is designed to service bigger volumes where stronger air exchange is needed. Whether it’s the engine room of a yacht, a spacious bilge area, or a large locker, the increased size of this grille allows significantly more fresh air in and hot/moist air out. This helps lower the temperature in the confined space and prevents condensation and musty odors from developing.
The material used is a reinforced ABS plastic with UV protection, capable of withstanding harsh weather conditions. Even under constant sun and salty marine air, the grille maintains its integrity and color without yellowing or becoming brittle. Installation remains straightforward: carefully cut a 210 x 108 mm opening in the boat’s hull or superstructure, then insert the grille snugly into place. Four screws (stainless steel recommended) are used via the pre-drilled holes to secure the grille firmly. The wide slats of this model are more open, providing maximum airflow capacity – crucial for spaces like engine compartments where engines demand ample air and generate heat. At the same time, the angled blades prevent direct rain or spray from entering, protecting the equipment behind the vent.
Use Cases and Recommendations:
- Specifically suited for ventilating engine rooms on larger boats and yachts. Mounted on the hull or cabin structure, this grille will help supply the engine with enough fresh air and assist in expelling hot air and fuel vapors out of the compartment.
- Suitable for bilge and keel areas – if you have an enclosed volume in the hull where moisture accumulates (e.g., around tanks or pumps), this vent can serve as an outlet or inlet to prevent humidity build-up and mold.
- Recommended for vessels around 7 meters or longer, or those with more substantial interior volumes. A larger hull often requires bigger openings for adequate ventilation – this grille provides exactly that increased capacity.
- Pairs excellently with powered ventilation systems: it can be used as an intake for a high-capacity blower to force fresh air into an engine room, or as an exhaust vent for a fan pulling hot air out. The high throughput of the grille will not choke the performance of electric ventilators.
- Aesthetically pleasing white plastic that blends well with typical yacht and boat color schemes. When installed in visible areas it looks neat and professional. For best results, use stainless steel fasteners during installation to avoid any rust stains around the grille over time.




