| Hydronamic Engineering Corp (Brea, CA)
|
| Hydronic & Steam Equipment Co (South Bend, IN)
|
| Hydroseal Valve (Oklahoma City, OK)
|
| I D Booth Inc (Elmira, NY)
|
| Imperial Weld-Ring Corp (Elizabeth, NJ)
|
| Independent Pipe & Supply Co (East Chicago, IN)
|
| Independent Pipe & Supply Corp (New Haven, CT)
|
| Industrial Hose & Supply Inc (Shohola, PA)
|
| Industrial Instrument (Baytown, TX)
|
| Industrial Piping (Salt Lake City, UT)
|
| Industrial Supply (Baton Rouge, LA)
|
| Industrial Valco Inc (Denver, CO)
|
| Ingersoll-Dresser Pumps (Las Vegas, NV)
|
| Instrument & Valve Svc Co (Decatur, AL)
|
| Instrument Maintenance Co (Midland, TX)
|
| Intercoastal Sales Co (La Porte, TX)
|
| Intermountain Industrial Supl (Portland, OR)
|
| International Piping Products (Houston, TX)
|
| Invensys Appliance Controls (West Plains, MO)
|
| Iron Mule Products Inc (Cassville, MO)
|
| J & J Supply (Valrico, FL)
|
| J & J Supply (Las Cruces, NM)
|
| J & S Valve Inc (Huffman, TX)
|
| J A Campbell Co (Signal Hill, CA)
|
| J B Supply Co (Lincolnwood, IL)
|
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