A plumbing fitting configured to receive a first fluid from a first fluid supply and a second fluid from a second fluid supply, the plumbing fitting comprising: a hollow body (50,60); a valve housing separate from and located within the hollow body (50, 60), the valve housing comprising: a first inlet chamber that includes a first inlet for receiving the first fluid; a second inlet chamber that includes a second inlet, separate from the first inlet, for receiving the second fluid; and a mixing chamber; a first flow control valve operatively coupled to the valve housing; a second flow control valve operatively coupled to the valve housing; and an actuator assembly configured to move the first flow control valve relative to the valve housing to control a flow of the first fluid from the first inlet to the mixing chamber, and configured to move the second flow control valve relative to the valve housing to control a flow of the second fluid from the second inlet to the mixing chamber, characterized in that each of the first and second inlet chambers (13, 13') includes two separate outlets into the mixing chamber, the first flow control valve controls the flow of the first fluid to the mixing chamber through the two outlets of the first inlet chamber such that the first fluid flowing from the first inlet to the mixing chamber exerts substantially no net force on the first flow control valve, and the second flow control valve controls the flow of the second fluid to the mixing chamber through the two outlets of the second inlet chamber such that the second fluid flowing form the second inlet to the mixing chamber exerts substantially no net force on the second flow control valve. a hollow body (50,60); a valve housing separate from and located within the hollow body (50, 60), the valve housing comprising: a first inlet chamber that includes a first inlet for receiving the first fluid; a second inlet chamber that includes a second inlet, separate from the first inlet, for receiving the second fluid; and a mixing chamber; a first inlet chamber that includes a first inlet for receiving the first fluid; a second inlet chamber that includes a second inlet, separate from the first inlet, for receiving the second fluid; and a mixing chamber; a first flow control valve operatively coupled to the valve housing; a second flow control valve operatively coupled to the valve housing; and an actuator assembly configured to move the first flow control valve relative to the valve housing to control a flow of the first fluid from the first inlet to the mixing chamber, and configured to move the second flow control valve relative to the valve housing to control a flow of the second fluid from the second inlet to the mixing chamber, characterized in that each of the first and second inlet chambers (13, 13') includes two separate outlets into the mixing chamber, the first flow control valve controls the flow of the first fluid to the mixing chamber through the two outlets of the first inlet chamber such that the first fluid flowing from the first inlet to the mixing chamber exerts substantially no net force on the first flow control valve, and the second flow control valve controls the flow of the second fluid to the mixing chamber through the two outlets of the second inlet chamber such that the second fluid flowing form the second inlet to the mixing chamber exerts substantially no net force on the second flow control valve.