Control one- and two-speed heaters and air conditioners.

Plug in the thermostat, then plug your heater into the socket on the thermostat's plug.

Use to regulate line-voltage HVAC systems where flammable gases, vapors, and dust are present. Thermostats are rated Class I, Divisions 1 and 2, Groups C and D; and Class II, Divisions 1 and 2, Groups E, F, and G.

These thermostats are rated NEMA 4X for protection from dirt, washdowns, and corrosion.

Set these thermostats to adjust the temperature at certain times each day.

Also known as snap discs, these thermostats switch on cooling systems or switch off heating systems when equipment gets too hot.

As the temperature goes up, the pressure in the system goes up.

When duct airflow varies from the setpoint, these actuators open and close until the system requirement is restored.

Often used to detect clogged air filters and iced air conditioner coils, these switches sense small changes in pressure between two points in your duct.

Often added to existing systems, these gates install without disassembling duct. Also known as half gates.

More convenient than other blast gates, these automatic gates open and close in sync with dust collectors, fume exhausters, and other machines.

Also known as barometric dampers, these dampers improve furnace performance by automatically opening and closing to maintain consistent airflow despite changing environmental conditions.

Regulate airflow by adjusting dampers from fully open to fully closed.

Often used for electric-to-gas conversions and renovations, these exhausters allow gas- or oil-fired equipment to be vented through a sidewall rather than a chimney.