Mash Plates with our 120u bags. Pressing out some super tasty rosin. These are our 4"x4"x1" solid stainless steel plates. They weigh 4.2lbs each so they hold a consistent heat. The controller is 110v single PID with 2 heating cartridges per plate. Seen here with our standard bottom plate and collar that fits any standard sized shop press. We are using a 20ton press with an air asist hydrolic jack.