$56.99 Rheem RHC-TST501CMMS Thermostat RUUD UHC-TST501CMMS
Rheem EcoNet LCD Touchscreen Wi-Fi Programmable Thermostat Control Center - HVAC Units | HVAC 
I have a 1f99-1292 Rheem communicating thermostat for an AC only system. the wires are C=Blue; R 
