Detailed Product Description

Galvanized metal mesh filter aligned with the wind out of the surface protection filter can not be punctured to prevent the filter due to the wind pressure caused deformation. To ensure that all filter surface are to be fully utilized.
Gradually-layer structure with a higher volume of Dust, a longer service life characteristics. The filter frame sticking around and will prevent air leakage, or the pressure caused by wind damage.
Robust waterproof cardboard, on the diagonal of the frame is designed to provide maximum filtration area and make internal filter close adhesion on the frame.
Depth strainer into 1 inch,2 inch, 4-inch three sizes, the filter area is generally flat screen five times, it than man-made fibers or glass fiber filter has a long service life and high filtration efficiency.