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Ships within 48 hours · Estimated delivery Oct 16 - Oct 21
Adjustable fixed end positions
Material: Metal and wood
For recess: 31 mm
which offers advantages when using cover caps
Regel-air Fensterfalzlüfter FFL Typ 21 RF Set Anschraubplatte Adjustable fixed end positionsRegel 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,
