Linear Slot Diffuser (LSD20)

Airfoil’s Australian Made premium Linear Slot Diffuser (LSD20) offers a versatile method of air diffusion. Constructed from Airfoil’s engineered aluminium extrusion, the LSD20 is suitable for both supply and return air applications. Featuring a sleek design with an overall frame size of 28mm, an external neck-to-flange size of 18mm, and a depth of 50mm, this diffuser is typically ceiling-mounted for a clean linear appearance.

The internal black “J” blades are housed within a 19mm “T” bar style extrusion, allowing for flexible air throw patterns with each blade adjustable up to 180°. Airfoil’s superior 25mm slot opening design ensures greater air volume per slot and reduced noise, resulting in more effective room air circulation. The LSD20 can accommodate up to 8 slots with a maximum single length of 4.5 metres, and for installations exceeding 5 slots, 2.4 metre sections are recommended. Optional 45° “Mitred End” (ME) and Joining Strips (JS) for extended runs are available. Finished in standard white powder-coated or natural anodised aluminium silver, it can also be customised to any colour. Suitable for perimeter office spaces, corridors, airports, hospitals, shopping centres, cinemas, and various domestic or commercial applications requiring variable air throw patterns.