Good points

Low noise level
Rubber seal
Clamping springs

Ventilation extraction valve with diameter Ø125mm.

This plastic ventilation valve from Zehnder Stork is provided with clamping springs for the attachment and a foam rubber ring for the seal. This makes this air extraction valve very suitable for mounting in for example spiro tubes.

The STC 100/125 valve is made of high quality plastic. In addition, it is infinitely adjustable for the desired air volume and has its own low noise level.

Brand	Zehnder Stork
Category	All extract valves
GTIN	8717573009782
Manufacturer's item number	705051020
Article number	35028019

Specifications

Connection diameter	125 mm
Connection	Clamping springs
Airflow	75 m³/h
Category code	143
Adjustable	Continuously variable
Colour	White
Material	Plastic
Type	Drain
Shape	Round

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Saving energy Tips to reduce your energy bills with good ventilation

Energy prices are skyrocketing, and decesion have to be made between eating or heating. It is time to make our homes more sustainable and thus save energy. In summer, our homes use less energy than in winter. In summer you are outside more often and the heating does not have to be switched on. In winter, we often keep the windows closed to keep the heat in, but unfortunately that is when the problems arise. There is no fresh air coming into our well insulated houses. The lack of fresh air leads to high CO2 levels, which in turn leads to various health complaints.