Our product is the most efficient product on the market. While most other products use plastics, rubber gaskets and glues to hold their product together, our product is designed with an anodized aluminum frame and a stainless steel micro-mesh filter.Because out product is factory crimped without a need for plastics, rubber gaskets or glues, it guarantees durability against the suns harsh heat and ultraviolet rays. With this product, not only will you get a product that you need and deserve, but you also get a product that actually works and will stand the test of time.