LITTLE FALLS, N.J., June 4 /PRNewswire-FirstCall/ -- CANTEL MEDICAL CORP. (NYSE: CMN - News) reported a 109% increase in net income to $4,183,000, or $0.25 per diluted share, on a 3.5% increase in sales to a record $66,431,000 for the third quarter ended April 30, 2009.