2001 Mack CH 613, Mack E-7 380 HP motor, Eaton Fuller Auto-shift transmission, stabilized air suspension, Inter-axle differential lock, master battery disconnect, Kussmaul Auto-eject system, new 2993 gallon stainless steel tank, 12-gauge 304-grade stainless construction, #4 satin finish, rear sight gauge, 6" internal vent, SS ladder, SS light brackets, SS conduit for wires, Mild steel skid, 10" Mild steel electric Newton dump, spring mounted, back welded, NFPA Baffling, Berkeley B3ZRMS 750 GPM pump.