For a printable version of our linecard, please click here.

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Samsung:   Variable refrigerant flow (VRF) systems, ductless split systems and air cooled chillers.  




CaptiveAire Paragon: DOAS Rooftop units and heat pumps.




Multistack: High efficiency magnetic bearing centrifugal chillers, and modular chillers for comfort cooling, process, and heat recovery  applications.  


Petra: Complete HVAC line, specializing in high quality low-cost packaged DOAS units and split systems.




Haakon Industries:  Custom air handling units from 500 to 200,000+ cfm for a variety of applications.  Knock-down construction is available.  



Florida Heat Pump:  Water to air heat pumps for geothermal and conventional tower applications, water to water heat pumps, and roof-mounted water source heat pumps and make-up air units.




AcoustiFLO:  Low sound (10-12dB quieter) plenum fans.  Up to 81% Efficient, 15% more than traditional fans. Ideal for air-handling replacement. 




Aerofin:  Heating, cooling & integral face & bypass coils.




Bioclimatic:   Air purification systems, gas phase filtration systems, custom filter housings, kitchen exhaust systems, high volume filtration systems, pressurization units. 



Canariis Corporation: UL listed Packaged pumping systems and packaged chiller and boiler plants. All systems are electrically, hydrostatically, and flow tested at design conditions prior to shipment.




Climate by Design, Inc. (CDI): Active desiccant dehumidification units for low dew point applications and strict humidity control in various industrial and commercial applications. 




Robur: Gas fired, single phase, no mechanical compressors or engines. Drastic reduction in electrical power consumption, environmentally friendly, durable, modularity.


Sharc Energy Systems: Wastewater heat recovery system and a strategy of using wastewater as an alternative resource in place of cooling towers and geothermal well fields.




Building Performance Equipment: High-efficiency, air-to-air, direct counter-flow energy recovery ventilators. Typically 80% thermally efficient on up to 98% and have an Energy Efficiency Rating (EER) that is between 36 and 160 EER.

Sigma Corporation: Hot water unit heaters, cabinet unit heaters, wall fin, convectors, radiant heaters.

Direct Coil:  Fluid coolers

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Magic Aire: Vertical and horizontal ultra quiet unit ventilators with ECM fan technology and variable speed compressors.  





Neptronic (NEP): Humidifiers including electric, gas fired, steam to steam, direct steam injection, atomizing, and evaporative type. Open, tubular, and finned-tubular electric duct heaters.Terminal unit controllers, thermostats, and actuators for various applications.





Omega: High rise and retrofit heat pumps, hybrid heat pumps.





P&G Manufacturing Inc: Containment filtration systems for various applications


Poolpak International: Indoor pool, whirlpool, and general-purpose dehumidification units.





Rosemex:  Fan coils, Induction units, custom air handlers and valves




Systemair: ERV's and catalogued air handlers.



Snow Technologies (Snow Tech): Commercial snow melting systems with steam heat exchangers or boilers, pumps, and controls. 




Superior Rex: Extensive range of fan coil and air handler units, designed for reliability, efficiency, and longevity.





Tower Tech Inc. Cooling Towers:  High-efficiency counterflow fiberglass modular cooling towers.



Waddell Engineering:  Laboratory control valves


Yaskawa: Variable frequency drives for HVAC applications.  


Lynxspring: Complete open-protocol building management controls systems with web-based remote access, full installation and commissioning included.



Krueger: Fan coils, blower coils, and VAV boxes





Delta Controls: Dependable and user-friendly building control solutions for commercial, healthcare, education, leisure buildings and more. Fully integrated native BACnet building solutions encompassing HVAC, Lighting and Access products. 

Raywall: Electric unit heaters, wall heaters, baseboard heaters, and other specialty heaters. 

Airedale: Vertical classroom unit ventilators

Thermoplus: Water cooled packaged DX units and dehumidifiers.

Rockville, MD


12216 Parklawn Drive, Suite 201

Rockville, MD 20852

301.545.5100 (p)

866.400.0750 (f)

240.638.9768 Service Hotline

New England


58 Winter Street, 4th Floor

Boston, MA 02108

617.315.1300 (p)

866.400.0750 (f)

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