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Description of Business	12 Months Ended
Description of Business	Dec. 31, 2015
Description of Business
Description of Business	(1) Description of Business Watts Water Technologies, Inc. (the Company), through its subsidiaries, designs, manufactures and sells products and solutions that manage and conserve the flow of fluids and energy into, through and out of buildings in the residential and commercial markets, predominantly in the Americas and Europe, Middle East and Africa (EMEA) and Asia-Pacific.