Today, Watts Water Technologies, Inc., a global provider of plumbing, heating and water quality solutions, officially announced that it has completed the acquisition of AERCO International, Inc., a manufacturer of high-efficiency commercial boilers and water heaters. In an all-cash transaction , Watts paid a total purchase price of approximately $264.5 million to acquire 100 percent of the share capital of AERCO, which is a portfolio entity of The Riverside Company.