Core & Main, a $3.2 billion distributor of water, sewer and fire protection products based in Maryland Heights, said Tuesday it has completed its planned acquisition of Long Island Pipe Supply Inc., a large provider of fire protection products and fabrication services in the Northeast.

It is the seventh acquisition by Core & Main since it became an independent company in August 2017 and “the largest by far,” Core & Main CEO Steve LeClair said. Financial terms of the deal, which was announced in May, were not disclosed.

Long Island Pipe, based in Garden City, New York, adds more than 300 employees and branches in New York, New Jersey, Massachusetts, Maryland, Connecticut, Rhode Island and New Hampshire to Core & Main’s more than 3,000 employees in 250 branches nationwide, including 235 in St. Louis.

“Our combined distribution channels will strengthen our ability to offer our customers fabrication services and additional products nationwide,” said Brad Cowles, president of Core & Main Fire Protection.

Core & Main has said it may go public at some point. It has been building an independent board of directors with the expertise to do so. Jim Berges, chairman of Core & Main and a former vice chairman and president of Emerson, has recruited directors who have run some of St. Louis’ biggest and most successful companies, including RubinBrown, Hussmann Corp. and Graybar. Berges is an operating partner of Clayton, Dubilier & Rice, the New York private equity firm that bought Core & Main for $2.5 billion in 2017.

As for future acquisitions, LeClair told the Business Journal in May: “We have an active pipeline out there. We’re in a lot of conversations. We have the capital.” His acquisition philosophy is to find companies that add markets or that do something better than Core & Main does.

Core & Main is the ninth-largest privately held company in St. Louis, according to the Business Journal’s 2019 ranking. It has more than 5,000 suppliers and a customer base of more than 37,000 municipalities, private water companies, professional contractors and others.

Before it became independent, it was a subsidiary of publicly traded HD Supply Holdings Inc. (Nasdaq: HDS) of Atlanta.