Corrosion Inhibitors
| AWT- Advanced Water Tech. |
| Action Mfg. & Supply Inc. |
| American Resin Corp. |
| Angus Chemical Co. |
| Aqua-Flo, Inc. |
| Aquanetics Sys., Inc. |
| AQUApura - Tempest Environ. |
| Ashland Chemical Co. |
| Betz Dearborn |
| Bio-Chem Assoc., Inc. |
| ChemTreat, Inc. |
| DuPage Water Treat. Prod. |
| Ecolab Inc., Food & Bev. Div. |
| Faiz Enterprises |
| Fuller Engineering Inc. |
| Horner Discus Int'l. Inc. |
| Hydropure Water Treat. Co. |
| Keytech Water Mgmt. |
| Kjell Corp., (The) |
| Menco Tech., Inc. |
| MID AMERICA WATER TREATMENT |
| Mid South Chemical Co., Inc. |
| Mountain Filtration Sys., Inc. |
| Piermont Ind., Inc. |
| Pure Water Source (The) |
| Ques Ind. Inc. |
| Quint Corp. |
| Rochester Midland Corp. |
| RSI Int'l. |
| Southeastern Filtration & Equip. Sys. |
| Spectrum Labs, Inc. |
| Technical Prod. Corp. |
| Watcon, Inc. |
| Earthcrew, Inc. |
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