We've played around with a lot of hop filters, and haven't really loved the drop in style. Most of them filter way too much hops, and hops aren't cheap. So we decided to design our own. This one is 600 micron mesh, made from 304 stainless steel, and has a hook with multi position settings so you can drop it in to your kettle at the right height. A simple screw and nut holds the hook to the basket. The more open space of the mesh gives you much better utilization and we use it for pellet and whole leaf hops. Take it from us, you are far better off having a little hops in the fermenter, than you are not getting the utilization of hops that you paid for.