Entlüftung Deckengrill Outet Einlass Wärmerückgewinnung Lüftungslüfter 4"" 5"" 6"" 8"" Durchmesser
ab 9,50 €
The air valve simply installs in your ceiling by first cutting a circular hole to the size of the air valve to fit. The push the valve from underneath and use the mating flange on the back and push for a tight fit.
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