Shadowline Diffuser Series
Ventilation grilles that are designed to be almost invisible
Our Shadowline Diffuser range of indoor ventilation grilles is made up of four different designs, all created to blend seamlessly with interior architecture. The Shadowline Diffuser Pro can be made almost invisible when positioned at the wall/ceiling junction, creating a shadowline detail that channels the air. The Shadowline Diffuser Circle, Square and Squircle are designed for ceiling installation and offer a discreet air opening that sits completely flush with the finished ceiling. Use the Shadowline Diffuser range for airconditioning grilles or as part of an inline ventilation system. Simply add one of our Ventilation Kits or choose from our large range of high performance ventilation products to complete the system.
A discreet architectural alternative to traditional ceiling grilles that can be customised to suit your space
Designed in Australia by Expella, this award winning
ventilation grille can be installed at the wall/ceiling
junction for a near invisible vent, or can be positioned in the ceiling to create a flangeless slot detail. Add an LED striplight kit for an ambient lighting effect that highlights the shadowline design feature.
The Shadowline Diffuser Pro’s modular design allows
you to customise the diffuser’s length and apperture to perfectly suit your space. Made from a custom aluminium extrusion, it has been engineered for
maximum performance and ease of installation.
Shadowline Diffuser Round, Square or Squircle — flangeless internal grilles that sit flush with the ceiling
All three designs have a centre panel that come primed and ready to be finished with the same paint as the rest of the ceiling, giving you a seamless and streamlined finish.
Simple installation
The low profile plenum box used for the Round, Square and Squircle Shadowline Diffusers makes them easy to install in the ceiling space, even when space is limited. Work with your gyprocker to cut, install, plaster and paint for a perfectly discreet finish that blends with the ceiling.
Build a complete ventilation system with Expella’s ventilation kits
Expella’s Shadowline Diffuser range is designed to be used as part of an inline ventilation system. Choose from one of our ventilation kits that include all of the additional components you need to build a complete system including an inline fan, ducting, external grille and backdraft dampers. The kits have been rigorously tested with our Shadowline Diffusers so you can rest assured your ventilation system will be high performing – no more damp, steamy bathrooms and unsightly grilles. Enjoy the benefits of a well ventilated space.
