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Well, 1/2" NPT fitting
Well, 1/2" NPT fitting
Our price: $12.30

Well, 1/2" NPT fitting.
24-Volt Transformer
24-Volt Transformer
Our price: $24.17

Used with 24-volt wall thermostat and 24-volt zone valves.
Line Voltage Thermostat
Line Voltage Thermostat
Our price: $26.77

Line Voltage Thermostat (120-volt) used to start the fan on forced-air systems.
Well, SS, 1/2" NPT fitting
Well, SS, 1/2" NPT fitting
Our price: $28.80

Recommended to be used with Pool Aquastat (p/n 191), sold separately.  Stainless Steel Well, 1/2" NPT fitting.
Single-stage, Non-programmable 24-Volt Thermostat
Single-stage, Non-programmable 24-Volt Thermostat
Our price: $34.50

Can be used in conjunction with zone valves, zone pumps and forced-air systems or used to operated 24-volt 3-way zone valves (requires 24-volt transformer).
Thermal Actuator, 2-wire
Thermal Actuator, 2-wire
Our price: $37.05

Optional thermal actuator (compatible with stainless steel radiant manifold kits) provides individual loop flow control on multi-zoned manifold.
Programmable 24-Volt Thermostat
Programmable 24-Volt Thermostat
Our price: $39.50

Can be used in conjunction with zone valves, zone pumps and forced-air systems or used to operate 24-volt 3-way zone valves (requires 24-volt transformer).
Thermal Actuator, 4-wire
Thermal Actuator, 4-wire
Our price: $50.57

Optional thermal actuator (compatible with stainless steel radiant manifold kits) provides individual loop flow control on multi-zoned manifold. This 4-wire actuator also features end switch for activation of a pump.
Fixed Aquastat, 190°F, 1/2" MPT fitting
Fixed Aquastat, 190F, 1/2" MPT fitting
Our price: $75.58

Non-adjustable, immersible, Fixed Aquastat, 190F, 1/2" MPT fitting
Fixed Aquastat, 175°F, 1/2" MPT fitting
Fixed Aquastat, 175F, 1/2" MPT fitting
Our price: $77.06

Non-adjustable, immersible, Fixed Aquastat, 175F, 1/2" MPT fitting.