Regel-air Fensterfalzlüfter FFL Typ 21 RF Set 047942011 Mini suspension spring for connecting

Mini suspension spring for connecting the roller shutter curtain to the steel shaft

Zusammenarbeit mit Adapter monostabil (Knöpfe)

Crank belt winder with belt

Power 90 W

Regel-air Fensterfalzlüfter FFL Typ 21 RF Set 047942011 Mini suspension spring for connectingRegel air window rebate ventilator FFL type 21 RF set The Regel air FFL ventilation system is a self regulating, plastic window rebate ventilator designed for installation in pairs. It features automatic airflow limitation. The Regel air FFL window rebate ventilator is concealed within the upper, un rigged area of the window. When the window is closed, the ventilation system is invisible from both the inside and outside. As wind pressure increases,