Installation 1: Round duct&diffuser, single suspension, hooks, wire fixed on the wire hangers Installation 2: Round duct&diffuser, double suspension, hooks, wire fixed on the wire hangers Installation 3B: Round duct&diffuser, single suspension, hooks, plastic profiles fixed to the ceiling directly Installation 3AB: Round duct&diffuser, single suspension, enlarged strip, plastic profiles fixed to the ceiling directly … Continue reading Mounting