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- Refrigeration Equipment
- AC and Heating Equipment
- Indoor Air Quality
- Food Service
- Compressors
- Motors and Accessories
- Refrigerants and Chemicals
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Controls and Electrical
- Thermostat
- Commercial Building
- Defrost Termination-Freeze Protection-Fan Switches
- Detector
- Electrical Devices and Accessories
- Flow Switch-Current Sensors
- Heating
- Humidity
- Motor Drives
- Pneumatic
- Pressure
- Supermarket Controls and Parts
- Temperature
- Timer
- Water Regulating Valve
- Zone Control and Wireless
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Float Switch
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Security Camera
- Parts and Components
- Supplies and Service
- Retired and Closeouts
- Student Program
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AWEF Regulations
Learn more about the US Department of Energy's new regulations on energy reductions for commercial walk-in coolers and freezers, and how they may impact your business.
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Technical Support
A quick consult with a United employee at any one of our branches can get you back on the job with complete equipment specifications and all components for any project. All in one stop.
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R-22 Information Center
The production and importation of R-22 ended as of January 1, 2020 but the use of existing inventories and reclaimed refrigerant is still allowed. Click here to learn more about your options.
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Refrigerant Regulatory Updates
