Side wall air inlet

Made of high quality PS plastics, solid and durable, anti-aging.

Air deflecting baffle is made of ABS ( or aluminium as your request ). The opening angle could be adjusted easily.

Special upper edges structure on the flap makes the window has good sealing performance.

Wind deflector is fitted on both sides of the flap to prevent the fresh air sinking directly, and make it flush into the center of the house, spread evenly.

Spring and pulley are made of stainless steel, anti-corrosion, long service life.  Two springs are installed in the middle of the flap. This design prevents the flap deforming due to long-term use.

Anti-bird mesh is installed.