The Gemini Level Master with Stainless Steel, Horizontal Mounted Bracket is a water driven chemical proportioner that bolts to the top of user-supplied tank and automatically maintains a constant supply of ready-to-use solution. The unique Gemini "double venturi / double float" injection system combines two completely separated venturis in one injector body and uses city water pressure (35 - 100 PSI) to draw and blend two chemical concentrates into the water stream independently so that the chemicals never mix until they are diluted. The system activates when the solution in the tank drops below a pre-set level, replenishes at 2 GPM @ 40 PSI, and cycles continuously. A secondary fail-safe float prevents overfilling.