Flow Measuring Equipment
| Advanced Electronic Prod., Inc. |
| Applied Membranes, Inc. |
| Aquanetics Sys., Inc. |
| Aquest, Inc. |
| Barnant Co. |
| Bio-Chem Assoc., Inc. |
| Better Water Ind. Inc. |
| Canadian Water Cond. Inc. |
| Carlon Meter Co., Inc. |
| Charger Water Treatment Products, LLC. |
| Data Ind. Corp. |
| Enting Water Cond., Inc. |
| Environmental Prod. USA, Inc. |
| Filter Soft |
| Flowdata, Inc. |
| Fluid Sys. & Controls, Inc. |
| GLI Int'l., Inc. |
| Gems Sensors |
| General Pump Inc. |
| Gulf Pool Equip. Co. |
| Horner Discus Int'l. Inc. |
| Hudson Corp. of Texas |
| ITT Barton |
| ISTEC Corp. |
| Key Instruments |
| King Instrument Co. |
| Krevco |
| Meter Equip. Mfg. Inc. |
| Mid-West Instrument |
| Milltronics, Inc. |
| New Age Water Tech. |
| Opella, Inc. |
| Osmonics Autotrol |
| ProMinent Fluid Controls |
| Pure Aqua, Inc. |
| R. D. McMillan Co. |
| R.O. Sys. Int'l. |
| Rowlands Sales Co., Inc. |
| Ryan Herco Prod. Corp. |
| SeaMetrics |
| SERFILCO, Ltd. |
| Thornton Assoc., Inc. |
| Vista Water Sys., Inc. |
| Water Group Sys., Inc. |
| Watermark Corp. |
| Western Water Prod., Inc. |
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