Effluent Treatment Equipment
| ATP Mfg. Ltd. |
| American Engineering Svc., Inc. |
| Aqua Care Sys., Inc. |
| Aqua Man Inc. |
| Aqua-Flo, Inc. |
| Baler Equipment Co. |
| CNM2 Enterprises, Inc. |
| Capital Controls Co., Inc. |
| Cartwright Consulting Co. |
| Cellini Purification Sys., Inc. |
| CuZn Water Sys. |
| Dow Chemical Co. (The) |
| F.E. Myers Co. |
| Filter Soft |
| Flowdata, Inc. |
| GLI Int'l., Inc. |
| Hanna Instruments, Inc. |
| Horner Discus Int'l. Inc. |
| HydroMax, Inc. |
| Kinetico Inc., Engineered Sys. Div. |
| LMI Milton Roy |
| Link-O-Matic Co., Inc. |
| Met-Pro Corp. |
| Mid South Chemical Co., Inc. |
| New Age Water Tech. |
| Osmonics |
| Ozone Pure Water Inc. |
| Ozone Purification Tech., Inc. |
| Ozotech, Inc. |
| ReWater Sys., Inc. |
| Separmatic Filter Co. |
| SERFILCO, Ltd. |
| Smith & Loveless, Inc. |
| SunRay Tech., Inc. |
| Sunshine Water Cond. |
| Tintometer Ltd. |
| Water Equip. Tech. Inc. |
| Water Services Corp. |
| WEBTROL Pumps / Weber Ind. |
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