Shadowline Diffuser Round
Expella
- CategoryVentilation Grills, Mechanical Ventilation Systems, Bathroom Extractor Fans
- RangeInternal Grilles
- BrandExpella
- Warranty5 years
Bathroom and laundry exhaust grilles for inline ventilation systems.
- Sits flush with the ceiling once installed.
- Fine textured centre panel finish (resembling gyprock) that is ready for painting, to provide a finish consistent with the ceiling.
- Designed to optimise airflow and improve ventilation system efficiency.
- Manufactured from durable, non-corrosive, high-quality ABS plastic – an ideal material for channelling damp air.
- Low profile design for restricted ceiling space.
- Easy to install.
- Low 148mm profile, ideal for restricted ceiling space.
- Acts as a service panel for system maintenance.
- Easy to clean, simply wipe with a damp cloth as required.
- Designed and engineered in Australia by Expella.
The Shadowline Diffuser Round is a flangeless internal ceiling grille that sits flush with the ceiling, allowing air to be channelled through ventilation systems. The diffuser has a round profile with a centre panel that is ready for painting, resulting in a discreet finish that matches the ceiling. Designed in Australia by Expella, it has been engineered to optimise airflow and efficiency.
About the
Seller
Australian innovation and excellence in residential and commercial ventilation systems
Expella is an Australian business specialising in healthy, architectural and effective mechanical ventilation solutions.
Founded on good design principles and practicality, Expella’s approach means that homeowners, architects, designers and builders no longer need to settle for unattractive grilles, squashed ducting and underpowered fans.
With Expella’s range of architectural grille designs and airflow system solutions, you have function and form. And our systems are more than just beautiful; wherever possible, our designs reduce noise, increase airflow and make installation simpler and more secure.
Our approach is best exemplified by our world-first odourless toilet. Odourless by Expella is a self-contained ventilation system that runs inside the toilet cistern to send odours straight to the sewer. No more putting up with toilet odour travelling up from the bowl and around the room before it reaches a window or extractor fan.
Expella products have provided years of health and comfort in commercial buildings and more than 13,000 homes around Australia.
- ArchiPro Member since2025
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