Low Emission Grain/Nut Dryers Potential Design, Inc.’s “THS-Series” pistachio and grain dryers are designed to specifically meet California’s emission standards for NOx and CO. Project Gallery: Home | Custom Conveyance | Rotary Roasters | Storage Silos | Cooling Tunnels | Low Emission Grain/Nut Dryers | Brochure | Contact Us Contactors Licencse # 695804 Website © 2009 Potential Design Inc. All Rights Reserved.