EKE, EKV and EKR are made of aluminium profile, while EKO is made of sheet steel. The standard colour of the grilles is white RAL 9016. The grilles are available in special colours on request, see colour options in colour chart RAL K1.
The installation frame K, connection box RAS and nozzle plates SAS / SAP are made of galvanised sheet steel.
EKO + SAP + K = ELO
Balancing plenum box for exhaust = PTE