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The Domus External Ventilation Grille is designed for homeowners and contractors seeking a reliable termination point for residential ventilation systems. It excels at facilitating consistent airflow while protecting ductwork from external elements, though users should ensure their wall material is suitable for screw-mounting before purchase. This 100mm unit combines a durable build with a discreet grey finish, making it an ideal choice for exterior wall mounting where both performance and aesthetics are prioritized.
| Colour | Grey |
|---|---|
| Model Part Number | 4904G |
| Brand | Domus |
Yes, you can use a high-quality exterior-grade spray paint suitable for plastic surfaces to customize the color.
The material is designed for durability, but we recommend using stainless steel fasteners to prevent corrosion in salt-heavy environments.
This specific model is an open-style grille designed for maximum airflow; it does not include an integrated back-draft damper.
If your existing ducting measures 100mm in outside diameter, this grille is the correct size.
Mounting screws are generally not included, as the required screw type depends on your specific wall material (brick, concrete, or wood).
Check the rear of the grille for accumulated dust or external debris and ensure the ducting behind the wall is not kinked.
Verify that all mounting screws are fully tightened and consider adding a thin rubber gasket behind the flange.
To install the grille, align the unit over the duct opening on your exterior wall. Mark the screw holes, drill the appropriate size holes, and secure the grille using weather-resistant stainless steel screws. Ensure that the seal between the grille and the wall is tight to prevent water ingress; a bead of exterior-grade silicone sealant is recommended around the perimeter. For compatibility, ensure your internal duct is exactly 100mm in diameter to ensure a snug fit. Maintenance is simple: periodically inspect the grille to ensure there are no obstructions such as leaves or debris that could impede airflow. Clean the surface with a soft, damp cloth when performing seasonal exterior home maintenance.
