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FOAM PROPORTIONER; MECHANISM INCLUDING A WATER FLOW SENSOR, A CONCENTRATE METERING VALVE, CONCENTRATE PRESSURE REGULATOR AND CONCENTRATE BOOSTER PUMP; MIXING FOAM AND WATER
FOAM PROPORTIONER; MECHANISM INCLUDING A WATER FLOW SENSOR, A CONCENTRATE METERING VALVE, CONCENTRATE PRESSURE REGULATOR AND CONCENTRATE BOOSTER PUMP; MIXING FOAM AND WATER