Storz & Bickel Volcano Vaporizer Solid Valve SetAll You Need For a Solid Time The Volcano Vaporizer Solid Valve Set by Storz & Bickel is a substitute set for the Volcano Vaporizer with Solid Valve System. The Solid Valve Set is produced as an OEM (Original Equipment Manufacturer), therefore, its parts are specifically constructed for its original pieces. The Solid Valve System is one of the two valve systems used with the Volcano, with the other being called the Easy Valve System. Made in Germany