Chemical Metering Systems
| Action Mfg. & Supply Inc. |
| Applied Membranes, Inc. |
| Aqua Care Sys., Inc. |
| B & B Specialties |
| Barnant Co. |
| Bio-Chem Assoc., Inc. |
| Blue White Ind. |
| Bonar Plastic Inc. |
| Capital Controls Co., Inc. |
| Carlon Meter Co., Inc. |
| Charger Water Treatment Products, LLC. |
| ChemTreat, Inc. |
| Dime Water |
| DuPage Water Treat. Prod. |
| Environmental Prod. USA, Inc. |
| FWT Wholesale Inc. |
| F.E. Myers Co. |
| Faiz Enterprises |
| Filter Soft |
| Flowdata, Inc. |
| Fluid Sys. & Controls, Inc. |
| Hanna Instruments, Inc. |
| Hellenbrand Water Cond., Inc. |
| Hood Mechanical Co. |
| Horner Discus Int'l. Inc. |
| Hudson Corp. of Texas |
| International Water Werks, Inc. |
| Ionics, Inc. |
| Keytech Water Mgmt. |
| Krudico, Inc. |
| LMI Milton Roy |
| Lancaster Pump |
| Link-O-Matic Co., Inc. |
| Menco Tech., Inc. |
| New Age Water Tech. |
| Oasis Corp. |
| Osmonics Autotrol |
| Penn Process Tech., Inc. |
| ProMinent Fluid Controls |
| Pure Aqua, Inc. |
| Rochester Midland Corp. |
| Semblex, Inc. |
| Seter Engineering Corp. |
| Watcon, Inc. |
| Water Group Sys., Inc. |
| Water Services Corp. |
| WaterCare Corp. |
| Waterite Inc. |
| Watermark Corp. |
| Wayne Consultants, Inc. |
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