Zep Inc. reported strong financial results for the fourth quarter and fiscal year 2013. In the fourth quarter, revenue grew 6% to $182.2 million, gross margins improved 130 basis points, adjusted EBITDA grew 8% to $17 million, and free cash flow grew by almost $27 million. For fiscal year 2013, revenue grew 5.5%, gross margins improved 110 basis points, adjusted EBITDA grew 6% to $57 million, and free cash flow increased $34 million to $38 million. Looking ahead, Zep expects continued cost reductions and efficiency initiatives to drive further margin expansion and debt reduction in fiscal year 2014.