| A. Schulman, Inc. |
| Aclo Compounders, a Business Unit of the Matrixx Group, Inc. |
| Adcock |
| Allchem Performance Products |
| American Sps, LLC. |
| Aquafine Corporation |
| AquaPRO Systems / Wayne Water Systems |
| AquaPRO Systems, LLC / Sunrunner Branded |
| Aquasol Controllers, Inc. |
| Aquatherm Industries, Inc. |
| Arch Chemicals, Inc. |
| Asahi Kasei Plastics North America Inc. |
| Astral Products, Inc. |
| atg UV Technology |
| Aurora Pump |
| Aurora Supply Company, Inc. |
| Autopilot Systems, Inc. |
| Baker Hydro Division of Waterco |
| BASF Corporation |
| BECS Technology, Inc. |
| Bernt Lorentz GmbH & Co. KG |
| Berson UV-Techniek |
| Best Buy Pool Supply |
| Bio-UV SA |
| Biolab, Inc. |
| Blue White Industries Ltd |
| Bradford Products LLC |
| Caribbean Clear DBA Fenix, Ltd. |
| Carvin Pool Equipment Inc. |
| CEPEX, S.A.U. |
| ChlorKing Inc. |
| Clearwater Enviro Technologies, Inc. |
| Com-Pac Filtration, Inc. |
| Creative Water Solutions, LLC |
| Current Systems, Inc. |
| Custom Molded Products, Inc. |
| Davey Water Products Pty Ltd. |
| Dayton Electric Mfg. Company |
| Del Ozone |
| Delta UV Corporation |
| Dura Plastic Products, Inc. |
| Ecolab, Inc. |
| Ecolab, Inc. |
| Ecolab, Inc. |
| Emperor Aquatics Inc. |
| Engineered Treatment Systems LLC |
| EP Minerals LLC |
| EPD USA, Inc. |
| Eureka Manufacturing Co., Inc. |
| Filbur Manufacturing |
| Filter Specialists, Inc. |
| Filtrex, Inc. |
| Fluidics Hawaii LLC |
| Fluidra USA, Inc. |
| Georgia Gulf Chemicals & Vinyls, LLC |
| Goldline Controls, a Division of Hayward Industries Inc. |
| Griswold Pump Company |
| Hanovia Ltd. |
| Harborlite Corporation |
| Harmsco, Inc. |
| Hasa Inc. |
| Hayward Industries, Inc. |
| Hayward Industries, Inc. |
| Hayward Industries, Inc. |
| Hayward Industries, Inc. |
| Hayward Industries, Inc. |
| Healthy Pool Technologies, LLC |
| Hollingsworth & Vose Company |
| Hybrid Pumps Inc. |
| I. D. Electroquimica, S.L. |
| In the Swim |
| Industrial Insulation Group, LLC |
| ITT Marlow |
| Jandy |
| KBK Technologies, Inc. |
| Kripsol Industrial S.L. |
| Lawson Aquatics, Inc. |
| Leslie's Swimming Pool Supplies, Inc. |
| Liquid Metronics, Inc. |
| Lubrizol Advanced Materials, Inc. |
| Magen Eco-Energy (A.C.S.) Ltd. |
| Master Spas, Inc. |
| MAXXFlex |
| Mer-Made Filter, Inc. |
| Met-Pro Corporation |
| MG International - Maytronics France |
| Miami Filter, LLC |
| Micron One Pool Filters |
| Natare Corporation |
| National O-Ring Division Hutchinson Seal |
| Natural Pool Products |
| Nemato Corp. LP |
| NeoTech Aqua Solutions, Inc. |
| Neptune-Benson, Inc. |
| Neptune-Benson, LLC |
| Next Generation Water Science |
| Ningbo LG Yongxing Chemical Co., Ltd. |
| Pacific Echo, Incorporated |
| Paco Pumps by Grundfos CBS Inc. |
| Paddock Pool Equipment Co, Inc. |
| Paddock Pool Equipment Co, Inc. |
| Paragon Aquatics |
| Pentair Aquatic Systems |
| Pentair Pool Products, Inc. |
| Pentair Water Pool and Spa, Inc. |
| Pentair Water Pool and Spa, Inc. |
| Pentair Water Pool and Spa, Inc. |
| PolyOne Corporation |
| Poolguard / PBM Industries, Inc. |
| Porex Corporation |
| PPG Industries, Inc. |
| Praher Canada Products Ltd. |
| Premier Silica, LLC |
| ProMaqua GmbH |
| Pure Planet Science & Technology, Inc. |
| Purifiber LLC. |
| Rola-Chem, Division of The Specialty Mfg. Co |
| Sabic Innovative Plastics US LLC |
| Saline Generating Systems, LLC |
| Saltline USA Inc. |
| Shasta Industries DBA A&A Manufacturing |
| Siemens Water Technologies Corp. |
| Smartpool, Inc |
| Sta-Rite Industries, Inc. |
| Sta-Rite Industries, Inc. |
| Superior Aqua Enterprises, Inc. |
| SureWater Technologies |
| Tek Tube LLC |
| Tiffany Holdings Pty Ltd. Trading as Compu Pool Products |
| TMI Salt Pure Corp |
| TMI Salt Pure Corp |
| Triodyne Safety Systems LLC |
| Triogen Ltd. |
| TriVitro Corporation |
| UMA Solar |
| United Industries, Inc. |
| United Industries, Inc. |
| Vartek Industries, LLC |
| Visual Vacuum Filter Company |
| Wapotec GmbH |
| Washington Penn Plastic Co., Inc. |
| Waterco Limited |
| Waterway Plastics |
| Watkins Manufacturing Corporation |
| Wenflow International, Inc. |
| Whitten Products Division |
| Zeotech Corporation |
| Zhuhai Workmate Motors Co., Ltd. |
| Zodiac Pool Systems, Inc. |