UNICO Inc. is the maker of The Unico System which is a small-duct, high-velocity central heating and air conditioning system.

Van Druen Heating & Air Conditioning is into air conditioning, heating solutions, indoor air quality, etc and is based out of the USA.

Manufacturer of vibration, shock and noise control products; seismic restraints; flexible connectors; instrumentation including pressure gauges, thermometers; sheet metal duct hardware, piping supports/clamps.

Refrigeration and air conditioning components.

Thermostats, gas valves, ignition controls and igniters, Filter Driers, Expansion Valves, and Solenoid Valves for heating, air conditioning, refrigeration and IAQ.

For over 100 years, Williams Comfort Products, located in California, has been manufacturing a wide array of comfort HVAC equipment including air curtains, DX and hydronic fan coils, air handlers, gas heating equipment and total space dehumidifiers.

Pressure switches, adjustable pressure switches, pressure sensors, thermostats, reversing valves, ball valves, contactors and capacitors, filter driers, accumulators, sight glass.

WM Buffington Co. is a family-owned business that has been providing quality heating and cooling services to the Central Pennsylvania area since 1952. For 66 years, their team of experts have dedicated themselves to providing fast, professional work with superior customer service.

Wm. W. Meyer & Sons, Inc. are renowned manufacturers of commercial and industrial vacuums for cleaning ducts, boilers, furnaces and chimneys in residential, commercial, institutional and industrial applications.

Yerhot Environmental Solutions is a trusted mold specialist. Their expertise comprises mold remediation services, mold inspection services, and precise mold testing services to ensure their indoor environment is safe.

YORK Heating designs, develops, and deploys customized solutions for a range of processing industries. In addition, they also provide refrigeration components on an OEM basis to packagers and systems integrators. Their featured products include packaged systems, compressors, and control panels that keep natural gas moving through pipelines and industrial process equipment working smoothly.

Stainless steel and aluminum chimney liner in both flexible and rigid; Z-Vent special gas vent pipe CAT II, III, IV. 3 gas fired heating; OEM manufactured product for all heating equipment.

Easy to install and operate zoning, VVT and VAV systems accessed remotely over the internet or on-site from a smart phone, tablet or computer. Zonex manufactures a system for every building and every budget from a 2 zone residential system to auto-changeover bypass VAV products to support up to 400 units. Product line includes, modulating dampers and D-Fusers with a complete line of wireless thermostats along with fresh air dampers and a humidity mitigation system to meet ASHRAE 62.2.