ventilation plastic air return grilles for door Sell like hot cakes

Frame: High quality plastic profile with 30mm flange as standard.

Blades: Aerofoil blades in 45° from plastic profile

Blades spacing: 19mm as standard

Support pipe: 8mm diameter plastic pipe

The frame & blades are high quality extruded plastic profiled construction with advantages of corrosion resistance and rigidity.

The blades is fixed to the frame by rivets and support pipe, which assure the quite, smooth and rattle free operation.

Blades are set at angle of 45° with 12mm spacing, and fixed to the frame.