These dry hop filters are great for holding hops, coffee or other flavor imparting items inside your cornelius kegs.Each dry hopper measures approximately 2-3⁄4" in diameter and comes with a threaded top cap and hook for easy removal. These keg style dry hoppers are made from 100% stainless steel, are easy to clean, and are hand fabricated right here in the USA.When using to dry hop with pellet hops, we recommend filling this vessel up half way. In our experience, this comes up to just short of 6oz of hops. You can certainly put more hops in the container if you choose, but keep in mind that both pellet hops and whole leaf hops will expand. If you were to pack the vessel to the brim, this expansion will likely cause the hops in the center of the vessel to not be in contact with your beer.