The Easy Valve Fine Screen Set for Storz & Bickel Volcano or Plenty is a set of six stainless steel Screens with fine mesh width. These screens are used for the vaporization of powdered materials in the Filling Chamber of the Easy Valve Unit. The screens included in this set prevent clogs and unnecessary stress on the engine of your vaporizer. If you like using finely ground herbs, these fine screens will ensure maximum filtration of the particles. It is important to replace the screens on a regular basis to ensure your Volcano’s optimal performance.