Siemens 192-3084 ROOM THERMOSTAT KIT, PNEUMATIC, RETROLINE, DA/RA, FAHRENHEIT, DSP, D/N, 2-PIPESiemens 192 3084 Room Thermostat Kit, Pneumatic, RETROLINE, DA RA, Fahrenheit, DSP, D N, 2 pipe This Pneumatic Powerstar Thermostat Kit is a Heat Cool Retrostat replacement kit, 2 pipe, Dual Setpoint, Direct Acting Heat 25 psi, Reverse Acting Cool 18 psi, Fahrenheit scale. Additional Information Mounting2 pipe DisplayDual Setpoint Operating rangeDay Night Measuring rangeFahrenheit