Mac Tools, Inc. Malco Products, Inc. Manchester Tank The Marley Cooling Tower Company Mastercool Inc. Maytag Corporation McQuay International Metal Products Milwaukee Electric Tool Corp. Mitsubishi Electric, HVAC Advanced Products Division Mobil Oil Corporation Mueller Industries, Inc. National Refrigerants Nibco NuTone, Inc. Paragon Electric Co. Penn Pikes Peak Community College Prest-O-Lite Ranco RB&W Corporation RCD Corporation Reed Manufacturing Co. Refrigeration Technologies Rheem Manufacturing Co. The Ridge Tool Company Ritchie Engineering – YELLOW JACKET Products Division Robinair Mfg. Corp. Sealed Unit Parts Co., Inc. Simpson Electric Co. Smith Equipment, Division of Tescom Corp. Spectronics Corporation Sporlan Division–Parker Hannifin Corporation Standard Refrigeration Company Star Expansion Company State of Ohio Suntec Industries, Inc. Tecumseh Thermal Engineering Thermodyne TIF Instruments, Inc. Trane Triumph Twist Drill Co. United Refrigeration Uniweld Vaco Products Van Steenburgh Engineering Laboratories, Inc. Vermont American Vilter Mfg. Co. Virginia KMP Watsco Westermeyer Industries, Inc. Westwood Products, Inc. White-Rodgers Division, Emerson Climate Technologies York Zero Zone, Inc. vii