Specifications include, but are not limited to: 3.1.Examples:Ditch Witch FX25 Vacuum Excavator, McLaughlin VX30 Vacuum Excavator, Vac-Tron CV, or TPWD approved equivalent3.2.Engine:3.2.1.24 to 40 HP gasoline or diesel motor3.2.2.Electric start3.2.3.12V electrical system3.2.4.Hour meter3.2.5.Minimum 6-gallontank3.3.Vacuum System:3.3.1.500 CFM minimum airflow3.3.2.500-gallon vacuum tank capacity3.3.3.Hydraulic dump lift3.3.4.Washable filter3.3.5.3-inch vacuum hose3.3.6.Opening tank for easy cleanout 3.4.Water System:3.4.1.Minimum 200-gallon water tank 3.4.2.4 GPM flow at 2,500 PSI minimum3.4.3.Antifreeze system3.4.4.50-ft hose with reel3.5.Trailer3.5.1.2 axles 3.5.2.Minimum 10,000 lb GVWR3.5.3.Heavy duty tongue jack