The RCDA series of round ceiling diffusers are specifically designed for ceiling applications. Manufactured using spun aluminium and plastic damper blades. The diffuser is fitted with a neck adaptor to suit the direct fitting of flexible duct. The diffuser comes with plastic adjustable damper blades and an easily removable core allowing for access to the damper and installation via ceiling fixing clips. Standard finish is powder coated RAL9016. Other colours are available upon request.