Rockville RFJG Gallon Fog/Smoke Juice Fluid For Chauvet American DJ ADJ Machines Rockville RFJG Gallon Fog/Smoke Juice Fluid For Chauvet American DJ ADJ Machines. 1 Gallon. Non staining. Non Toxic. Long Lasting. Water Based Fog Fluid. Authentic Rockville fog juice. Rockville Fluids are designed and tested to provide exceptional output. Lower end brands make bad quality fog juice which can damage your equipment, only use Rockville fluids! Guaranteed top quality fluid.