Adopt high-quality engineering plastic, anti-ultraviolet, anti-aging and ensure a long service life.

Protective net is tightly closed, reasonable structure,flexible opening, effectively prevent birds and insects entry.

Reset spring and pulley support are all made of high quality stainless steel, extend the lifespan.

Air guide plate can be offered, air guide plate can adjust the angle according to air inlet window opening angle.

Size for optional:

600*320*160mm,

640*310*160mm,

680*300*180mm.