Rieselschlitze Doppelverglasung Fenster Tür Lüftung Luftschlitz Gitter Rahmen
Trickle Window Ventilation. Trickle Ventilation. Easy to fit trickle ventilation - reduce condensation & damp. 2 x Trickle Vents can be fitted to allow cross ventilation. 1 x Internal Vent (Choice of 300mm or 400mm).