W.W. Grainger Inc. (NYSE: GWW), Chicago, Illinois, on Tuesday announced the appointments of CFO and president of the Grainger Business Unit, effective immediately.

The MRO distributor named Deidra “Dee” Merriwether, currently senior vice president and president, North American Sales and Services, as CFO.

And the company named Paige Robbins, currently SVP, chief technology, merchandising, marketing and strategy officer, as SVP and president of the Grainger Business Unit, comprised of Grainger businesses in the United States, Canada, Mexico and Puerto Rico.

“Dee is a proven executive with a track record of delivering profitable growth,” said DG Macpherson, chairman and CEO of Grainger. “Her financial expertise and deep understanding of Grainger’s business operations will serve the company well as we execute our strategy and expand our leadership position. I would also like to thank Rob O’Keef for serving as our interim CFO and the entire Grainger finance team for leading through a smooth transition. Rob will resume his role as Vice President and Treasurer.”

The Grainger Business Unit will merge all commercial functions for the Grainger brand in North America into a single organization. This new structure will help drive profitable share gain and exceptional customer solutions across geographies.

“Paige is well-positioned to lead the Grainger Business Unit, bringing a strategic mindset and operational experience to the role,” said Macpherson. “Since joining Grainger, Paige has made significant contributions to the company, first as the head of our Global Supply Chain function, and most recently leading Grainger’s Technology, Merchandising, Marketing and Strategy functions. In each position, she delivered strong operational results and put the customer first.”