Air Diffusion Agencies have an aluminium grille manufacturing facility in Lonsdale, South Australia that manufacture a range of grilles with various finishes. We can also make styles of special grilles to suit any application. Grilles can be viewed by clicking on a category below or via our online Grille Catalogue.
ADA support The Industry Advocate’s SA Product Register and grilles manufactured at our Lonsdale factory are proudly SA Manufactured, SA Assembled and SA Supplied.
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Louvre faced ceiling diffusers are the industry standard supply air grille.
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A general purpose volume control damper, made from all aluminium construction.
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This popular outside air louvre is suitable for supply, relief and exhaust applications.
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Door grilles are a vision proof method of transfering air in partition applications.
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Perforated plate diffusers are ideal in areas where resistance to tampering is desirable.
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This Industry standard eggcrate grille can handle extremely high air volumes with minimal pressure drop and noise.
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These grilles can handle extremely high air volumes with minimal pressure drop and noise and are great for commercial projects.
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This general purpose volume control damper is more resistant to corrosion enabling them to be used in areas of high humidity, like swimming centres and tropical environments.
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Storm style outside air louvres feature a double rain trap and are designed to ensure minimum ingress of water whilst producing maximum air flow at low noise level.
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This full width bar grille is designed for use where complete vision obstruction is not required.
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Secure perforated plate diffusers are designed for secure applications where resistance to tampering is required.
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The bevelled faced ceiling diffuser has a smartly styled drop border frame that is suitable for all surface mounting applications.
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These lightweight dampers are fitted directly to the back of grilles with fixing side plates usually by way of riveting.
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Double deflection wall registers feature two cores with adjustable blades that allow for custom blow patterns to be created on both horizontal and vertical planes.
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Storm style outside air louvres feature a double rain trap to ensure minimum ingress of water whilst producing maximum air flow at low noise level.
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The clip-out-core eggcrate grille is versiltile for any application and provides flexibility with installation as it doesnt require depth behind the core of the grille to remove the core.
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Perforated plate diffusers are perfect for areas where resistance to tampering is desirable, such as schools.
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Stream Splitter Dampers are commonly used in commercial applications as a volume control device in air supply systems.
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Single deflection all-purpose wall registers are recommended for high volume air delivery applications to special purpose systems, most commonly return air and/or exhaust.
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The industry standard domestic return air grille, typically installed in ceilings but can also be wall mounted.