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Honeywell Q539A1014 Subbase for T87F The Round® thermostats

Honeywell Q539A1014 Subbase for T87F
The Round® thermostats

Single Stage, Heat Only, Cool Only systems (1 Heat / 1 Cool) Subbase for T87F (The Round®) thermostats 3 Modes: Heat, Cool, Fan R, W, O, B, Y, G...
$19.99

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Honeywell Q539J1006 Subbase for T87F The Round® thermostats

Honeywell Q539J1006 Subbase for T87F
The Round® thermostats

Heat Pump and Electric Heat Applications (1 Heat / 1 Cool) Subbase for T87F (The Round®) thermostats 3 Modes: Heat, Cool, Fan R, W, O, B, Y, G, P...
$19.99

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Honeywell Q674B1075 Subbase for T874 multistage thermostats

Honeywell Q674B1075 Subbase for T874
multistage thermostats

Multistage for Electric Heat Applications (up to 2 Heat / 2 Cool) Subbase for T874 (A-D) thermostats 3 Modes: Heat, Cool, Fan Wiring Terminals R, W1,...
$35.99

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Honeywell Q674E1049 Subbase for T874 multistage thermostats

Honeywell Q674E1049 Subbase for T874
multistage thermostats

Multistage with Auto Changeover (up to 2 Heat / 2 Cool) Subbase for T874 (A-D) thermostats 4 Modes: Heat, Cool, Fan, Auto Rc, RH, W1, O, B, W2, Y1,...
$39.99

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Honeywell T874A1036 Manual 1H / 1C Thermostat multistage

Honeywell T874A1036 Manual 1H / 1C Thermostat multistage

Multi-Stage systems (1 Heat / 1 Cool) Adjustable locking temperature stops Separate Scales for Heat/Cool setting Levers Mounts on Q674 Subbase...
$99.99

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Honeywell T874D1165 Manual 2H / 2C Thermostat multistage

Honeywell T874D1165 Manual 2H / 2C Thermostat multistage

Multi-Stage and Heat-Pump systems (up to 2 Heat / 2 Cool) Adjustable locking temperature stops Separate Scales for Heat/Cool setting Levers Mounts on...
$159.99

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Honeywell T87F2873 The Round® Thermostat heat only

Honeywell T87F2873 The Round® Thermostat
heat only

Heat-Only systems (1 Heat) Classic Twist to Set Dial Adjustable Heat Anticipator R and W Wiring Terminals Powered by the Heating System Honeywell...
$34.99

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Honeywell T921A1191 Proportional Thermostat 135 Ohm

Honeywell T921A1191 Proportional Thermostat
135 Ohm

135 Ohm Potentiometer Removable Setting Knob Throttling Range 2.5°F Heating or Cooling Applications R, W, B Wiring Terminals Honeywell series: T921...
$249.99

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Honeywell TS822A1039 Millivolt Thermostat mV heat only

Honeywell TS822A1039 Millivolt Thermostat
mV heat only

For 250/500 mV and 750 mV (DC) systems Single Stage, Millivolt Heating Only Nonadjustable Heat Anticipator Positive Off Switch R, W, Y Wiring...
$49.99

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