EXHIBIT 21.1 SUBSIDIARIES OF THE REGISTRANT ------------------------------ State/Country of Incorporation ------------------------------ CULLIGAN INTERNATIONAL COMPANY Delaware Bruner Corporation Delaware Burr Ridge Insurance Company Vermont Culligan Acquisition Corp. Delaware Culligan Acquisition Corporation Minnesota Winokur Water Conditioning, Inc. Connecticut Winokur Water Treatment Co., Inc. Connecticut Winokur Water Systems, Inc. Connecticut Winokur Water Systems Corp. New York Culligan of Canada, Ltd. Canada Culligan Water Conditioning (Ontario) Ltd. Canada Water Conditioning Finance Ltd. Canada Zyza Chem Limited British Columbia Culligan Consumer Direct, Inc. Delaware Culligan Des Plaines Valley Water Conditioning, Inc. Illinois Culligan Distribution Services, Inc. Iowa Culligan Dutchess-Putnam Water Conditioning, Inc. New York Culligan Espana S.A. Spain Culligan of Florida, Inc. Florida R&S McCoy Corporation Florida Florida Bottled Water Company Florida McCoy Transport, Inc. Florida H2O Ventures, Inc. Florida Gold Coast Water Technologies, Inc. Florida Culligan France S.A. France Aqua Franche Comte France A.T.S. (Acqua Technologies Services) France Blanchard Aqua Service France C.E.A.E. (Comptoir Europeen d' Affinage de l'Eau) France Culligan Aquitaine France Culligan Lorraine France Culligan Somme-Oise France E.A.U. (Exploitation Adoucisseurs unites de traitements) France G.E.A. (Generale Eco Affinage) France Sofadim France Technino France Traitement Des Eaux Du Littoral France Loire Affinage France Pierre Moret S.A. France Culligan Hungary Vizkezelesi Rt Hungary Culligan International (UK) Ltd. England Aqua-Dial Ltd. England Culligan London Ltd. England Culligan Anglia Ltd. England Dewplan Ltd. England Waterside plc England Culligan Italiana S.p.A. Italy Idracos spa Italy Tecnoservice srl Italy Tecnoacque srl Italy PTA srl Italy Culligan N.V. Belgium Aqua Europe Belgium Culligan Operating Services, Inc. Delaware Culligan Peninsula Industrial Water Conditioning Co. California Culligan Sales Company, Inc. Delaware Culligan (Switzerland) S.A. Switzerland Culligan Water Company, Inc. Delaware Culligan Water Company of El Paso, Inc. Delaware Culligan Water Company of Nebraska, Inc. Delaware Culligan Water Company of New York Delaware Culligan Water Company of Ohio, Inc. Delaware 225 V.C., Inc. Ohio Central Ohio Water Treatment Systems, Inc. Ohio Culligan Water Conditioning of Cleveland, Inc. Ohio Culligan Water Conditioning of Richmond, Indiana Indiana Partnership Southern Ohio Water Treatment Systems, Inc. - Zanesville Ohio Southern Ohio Water Treatment Systems, Inc. - Springfield Ohio Southern Ohio Water Treatment Systems, Inc. Ohio Southern Ohio Water Treatment Systems, Inc. - Middletown Ohio Culligan Water Company of San Diego, Inc. Delaware Culligan Water Company of Tennessee, Inc. Delaware Culligan Water Company of Washington, Inc. Delaware Water Quality Control, Inc. Washington Culligan Water Conditioning, Inc. Wisconsin Culligan Water Conditioning of Battle Creek, Inc. Michigan Culligan Water Conditioning of Butler, Inc. Pennsylvania Culligan Water Conditioning of Greater Detroit Michigan Culligan Water Conditioning of Houston, Inc. Texas Culligan Water Conditioning of Orange County California Layton Soft Water, Inc. California Layton Manufacturing Corp. California Culligan Water Conditioning of South Bend, Inc. Indiana Culligan Water Conditioning of Tippecanoe County, Inc. Indiana CWC Finance Corp. Illinois CWC, Inc. New Jersey CWC International, Inc. Delaware CWG, Inc. Delaware Culligan Wassertechnik GmbH Germany CWM International, Inc. Delaware Culligan de Mexico S.A. de C.V. Mexico Dallas-Ft. Worth Water Quality, Inc. Texas Elkhart Water Conditioning, Inc. Indiana Enerserve N.V. Netherlands Antilles Enerserve (Antigua) Limited Antigua Enersave Company Limited Anguilla Everpure, Inc. Nevada Everpure Japan, Inc. Japan N.V. Everpure (Europe) S.A. Belgium Greater Chicago Culligan Water Conditioning, Inc. Illinois High Quality Water Service, Inc. California Indiana Soft Water Services, Inc. Indiana Inland Empire Dealership Property, Inc. California St. Louis Soft Water Service, Inc. Missouri Santa Barbara Dealership Property, Inc. California Sparkling S.A. Argentina Ultra Pure Systems, Inc. Minnesota U.S. Water Products, Inc. California CULLIGAN (UK) LIMITED England Protean plc England Protean (UK) Holdings Ltd. England Elga Ltd. England DWA Verwaltungs GmbH (Germany) Germany DWA GmbH & Co. KG (Germany) Germany Elga Environmental Ltd. England Elga Group Services Ltd. England Chromacol Ltd. England Epsom Glass Industries Ltd. England LIP (Equipment & Services) Ltd. England Jenway Ltd. England Wittersley Ltd. England HPLC Technology Company Ltd. England Lenton Thermal Designs Ltd. England Carbolite Furnaces Ltd. England Protean (overseas) Holdings Ltd. England Protean Inc. (USA) Techne Inc. (USA) Techne Cambridge Ltd. (UK) FTS Systems Inc. (USA) New York Jenway Inc. (USA) Delaware Carbolite Inc. (USA) Wisconsin Elga Inc. (USA) Delaware Amchro Inc. (USA) Delaware Elga GmbH (Germany) Germany Elga Ltd. (Ireland) Ireland Elga SA (France) France DWA SARL (France) France SDICO SARL (France) France PLYMOUTH PRODUCTS, INC. Delaware Ametek Filters, Limited England APIC International S.A. France AFIMO S.A.M. Monaco