Reckitt Benckiser, the household care and homecare giant, has announced it has agreed to sell a majority stake in its Essential Home business to private equity investor Advent International in a deal worth up to $4.8 billion. The Essential Home portfolio includes air freshener brand Air Wick, water softener brand Calgon, laundry care brand Woolite, and detergent brands Cillit Bang and Easy-Off in more than 70 markets. The deal also includes six …