Zehnder TVA-P grille housings are intended for connecting disc valves and designer grilles with a connection width of DN 125. The maximum nominal air volume is 45 m³/h. The housing can be used either as a wall outlet or ceiling outlet. Due to the optimised connector position and carefully considered fastening concept, the housing can be used in brick-wall and dry-wall installations, as well as in concrete ceilings. The air volume regulation for the grille can be adjusted at the vent. The airflow of the supply and extract air valve can be set directly at the valve.