This Powerstar Pneumatic Room Thermostat Chassis and Wall Plate is a 1-pipe, low air output, Dual Set Point, Dual Output, Heat Reverse Acting, Cool Direct Acting, 15 psi cool and 30 psi heat for Heat/Cool applications with Fahrenheit scale.; The Siemens 193-213 P’STAR FEB STAT,H/C,RA/DA
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