Air Conditioning Equipment American Standard Benchmark Coils Broan Ventilation Products Climate Master Cozy Wall/Floor Furnaces Duct Free Electrostatic Filters EMI Products First Company Air Handlers G.E. Room A/C & Zoneline Magic-Aire Equipment Reznor Products Samsung Sanuvox Air Purification Servel-Robur Skuttle Humidifiers Unico Systems

Environmental Controls Barber-Colman Controls Climate Technologies General Controls Honeywell Controls Intermatic Time Controls Johnson Controls Kreuter Controls Marktime Controls Paragon Time Controls Penn/Johnson Controls Siemens UniLine Controls/Robertshaw White-Rogers Controls

Refrigeration Products A-1/Orbit Compressors AC&R Products Alco Controls Amcot Cooling Towers Baltimore AirCoil Blissfield Compressors Breezaire Cooler Units Bristol Compressors Henry Valve Company Jackes-Evans Valves Maneurop Compressors Packless Vibration Eliminators Parker Driers/Expansion Valves Ranco Controls Recold Refrigeration Russell Coil Company Superior Valve Company Tecumseh Products Vapco Chemicals Virginia Driers/Chemicals

Parts and Supplies Acme-Miami Products Activated Charcoal Air Kontrol Filters Aluminum Tubing A.O. Smith Motors Baron Wire & Cable Beckett Pumps Browning Pulleys Buss Fuses Calgon Chemicals Cam-Stat Controls C & D Valves Cladlite Condenser Pads CPS Products Copper Tubing & Fittings Delta Flo Duct Heaters Dwyer Controls & Gauges DuPont Freon & Suva Products DuraLast Perm Filters DuroDyne Products Easy Heat Pipe Heat Cable Eco-Aire Filters Fasco Electric Motors Fenwal Ignition Controls Flex Connectors/Gas Flippin Valves Furnas-Siemens Gates Rubber Belts G.E. Motors Grasslin Time Controls Harris Solder Products Hartell Pumps Henry Roof Cement Ideal Electric Products Idec Control Relays J/B Access Valves & Gauges JT&T Wire Products King Adhesives Lasco Plastic Pipe Fittings Lau Blower Wheels & Fans Leeson Electric Motors Linde Industrial Gases Little Giant Pumps Marshalltown Gauges Marsh Instruments Marshall Gauges Mars Relays & Controls Motors & Armatures (MARS) Mueller Brass & Copper Rectorseal/Stewart Hall Robertshaw Controls Rubatex Insulation Tapes Sealed Unit Parts Suniso Oils Texaco Refrigeration Oils Thomas & Betts Products Trerice Gauges Universal Motors Wagner Products Watsco Products Water Services, Chemicals

Boiler Systems Amtrol Expansion Tanks Bell & Gossett Products McDonnell-Miller Controls Raypak Boilers & Pool Heaters Raypak Replacement Parts Reliance Regulator Watts Regulator Products

Sheet Metal and Registers Airmate Registers ATCO, Flex Duct J & J Registers JM Manville Insulation Products Nashua Duct Tapes Polyken Tapes Sheet Metal & Fittings TracPipe Gas Products

Tools and Test Equipment Amprobe Instruments Cooper Instruments Eveready Batteries Fieldpiece Instruments Fluke Instruments Imperial Tools Klein/Vaco Tools Lenox Blades & Hole Cutters Leybold-Inficon Detectors Malco Tools Ritchie Yellow Jacket Sperry Instruments Sta-Lube Products Taylor Instruments T.I.F. Instruments Turbo-Torch Weld Equipment Universal Enterprises Uniweld Products Weiss Thermometers