Non-return Clapper

€19.50

Tax included

The non-return flap allows the air to flow outwards, but prevents the entry of air from the outside into the growing space.

Millimeters

Non-return flap for ventilation systems.

It closes the duct automatically when the air flow from the extractor stops, preventing insects from entering from outside, or if you make a circuit with extractors, so that the air does not escape where it should not.

It is a spring-loaded hatch that only opens when air blows in the right direction, preventing air from coming back from where it enters or insects from entering when closed.