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Description of Business	12 Months Ended
Description of Business	Dec. 31, 2014
Description of Business
Description of Business	(1) Description of Business Watts Water Technologies, Inc. (the Company), through its subsidiaries, designs, manufactures and sells an extensive line of water safety and flow control products that improve the quality, conservation, safety and control of water predominantly in the Americas and Europe, Middle East and Africa (EMEA) with a presence in Asia-Pacific.