Webstone now operates as a brand of NIBCO and is recognized as an industry pioneer for innovative design of residential and commercial valves used in plumbing, hydronic, radiant, solar and geothermal applications.

Weil Pump is the premier wastewater pump manufacturer in the U.S. Weil specializes in submersible & vertical, grinder & slicer, vortex, condensate, dry-pit, and centrifugal pumps. In addition, Weil manufactures pump accessories such as control panels, level controls, basin covers, quick-removal systems, valve assemblies, and reverse-flow systems.

Refrigeration and air conditioning components.

American Wheatley HVAC brand products have established a reputation for providing dependable products to the HVAC industry. The Plugaroo/TDV™ is an industry standard. In addition to their complete line of tanks, strainers and valve products, they are committed to bringing the latest in HVAC technology from all over the world.

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

WIKA is a manufacturer and supplier of industrial measurement technology including measuring instruments for HVAC applications for pressure, temperature, humidity, and air quality.

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

Winters Instruments is a manufacturer of quality pressure and temperature instrumentation, with distribution in over 90 countries. Visit www.winters.com for more information.

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.

Complete line of HVAC&R service and installation tools including recovery, vacuum pumps, hoses, test and charging manifolds, gauges, leak detection and electronic testing equipment, and service tools.

ZONEFIRST is the first company that successfully developed and marketed HVAC Zoning Systems back in the 1950's and is today a renowned manufacturer of HVAC zone dampers and zoning systems. They provide zone control systems, automatic dampers, registers and diffusers for fresh air intake, economizers and ventilation control.

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.