FX65 vacuum excavators from Ditch Witch optimize airflow for the highest performance output, offering 1,215 cfm. Powered by a 74 hp diesel engine, trailer models are designed for large cleanup jobs. Equipped to meet the needs of virtually any size job site, they have large tank capacity options, beginning with 500-gallon vacuum tanks and 200-gallon water tanks. An advanced, three-stage filtration system with a cyclonic filter cleans the air prior to reaching the main filter for maximum protection of key equipment components. 800/654-6481; www.ditchwitch.com.