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Slot diffuser with five adjustable 400 mm slots - mixed colour RAL 9003
Slot diffuser with five adjustable 400 mm slots - mixed colour RAL 9003

Slot diffuser with five adjustable 400 mm slots - mixed colour RAL 9003

Article number: 37090557-9003

Brand: Grada

Delivery time: 21 working days
Adviesprijs £161.20

Slot diffuser with five adjustable slots L = 400 mm

The SLS15 aluminium slot diffuser comes with adjustable 400 mm slots and is suitable for both supplying and extracting warm or cold ventilation air. This adjustable slot diffuser is widely used in homes, offices, shops, conference rooms, and so on. The air slots can be individually adjusted, and each has two specially designed low-profile deflectors. This means the air supply flow can be adjusted by up to 180°.

These hidden deflectors ensure that the slot diffuser keeps its sleek design. The Grada SLS15 slot diffuser is suitable for ceiling or wall installation. Either the insulated or uninsulated SPS plenum box is recommended/used for installation.

Slot diffuser propertiesValue
Front panel length440 mm
Front panel height237 mm
Number of slots5 slots
Slot length400 mm
Slot height25 mm
Free flow area500 cm²
Air displacement at 3 m/s150 m³/h
InstallationCeiling or wall mounting
ConnectionPlenum box (not included)
FunctionsSupply and extraction
Number of adjustable parametersTen, two deflectors per slot
Nominal length410 mm
Nominal height221 mm

The nominal length and height shown is the cutout size where the slot diffuser is installed, also known as the opening size.

Slot diffuser colours

All slot diffusers are available in mixed colour blends (see table). Mixed colour blends are paint finishes which are mixed specifically for you. All products come on 90-day approval (except for products finished with a 'mixed colour blend').

Mixed colourNameCoatingFinish
RAL9010 (tip)Pure whitePowder coating70% gloss
RAL9003Signal whitePowder coating70% gloss
RAL7001Silver greyPowder coating70% gloss
RAL9005BlackPowder coating30% gloss
RAL9003Traffic whitePowder coating70% gloss

(mixed colours shown in photos may differ slightly)

These mixed colours are available at no extra cost. Want a different mixed colour? This can be arranged - please contact us for a custom quote.

Brand Grada
Categorie Slot diffusers with adjustable slots
GTIN 8719544182784
Manufacturer's item number SLS15-F0400-RAL 9003
Article number 37090557-9003


Front width 237 mm
Front length 440 mm
Air pattern adjustable Yes
Material Aluminium
With end cap left Yes
With end cap right Yes
With volume adjustment No
Right of return No
Without plenum Yes
Coating RAL 9003
Colour type (no surcharge) Bespoke
Number of slots 5


Frequently asked questions