IN - Flush-Mounted Displacement Diffuser
Flush-mounted supply air diffusers for wall and ceiling without visible screws
The IN series consists of flush-mounted displacement diffusers for wall or ceiling installation. The diffuser features a perforated front that conceals the adjustable REPUS® nozzles, which distribute air evenly across the entire front surface with a very short throw. Thanks to the snap-mounted front, a clean aesthetic is achieved without visible screws.
The series is available in three versions – INC, INR and INU – adapted for different installation conditions. All models are maintenance-free and designed to provide a comfortable and energy-efficient indoor climate with high air quality in the occupied zone.






Technical Specifications:
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Construction in galvanised sheet steel
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Front thickness: 1.25 mm
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Front and nozzle plate powder-coated in white RAL 9003 gloss 30% (NCS S 0500-N)
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Diffuser depth can be increased by approximately 15 mm by sliding the nozzle plate outward – simplifies installation
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Available in three models:
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INC – with circular connection
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INR – with rectangular connection
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INU – without plenum box for installation in site-built duct
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REPUS® nozzles provide uniform and draught-free air distribution across the entire front surface
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Creates an efficient displacement system with lower temperature in the occupied zone
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Energy-efficient and manufactured from recyclable materials
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Completely maintenance-free – no risk of clogging
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Front mounted without visible screws – clean and simple installation
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Diffuser depth adjustable during installation
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Suitable for installation in wall or ceiling, or directly in pressurised wall/ceiling (INU)
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Requires no service other than wiping
AMA Text for Design
TDxx REPUS® low velocity air diffuser for flush mounting type IN or equivalent
- The diffuser shall have internally mounted adjustable REPUS® nozzles for optimal air distribution
- Material: galvanised sheet steel
- Colour: powder coating, white RAL 9003 gloss 30% or as specified
Product designation
INC.bbbxhhhxddd-Øxxx | INR.bbbxhhhxddd-eexgg | INU.AAAxBBBx37
Use our configurator to dimension IN diffusers adapted to your project specifications.
Discreet design
Flush mounting without visible screws.
Flexible versions
Three models for different installation requirements.
Maintenance-free construction
REPUS nozzle technology and design that only requires wiping when needed.