Mfg. Date 12/1999, Model # BATT-74-3-DC, Serial # TT-29110-00, DOT406AL, Painted, 3-Compartments (3400-1480-2550) Double-Bulkheads, Air-Operated Internal Valves, "Y"- Plumbed Bottom Loading/Unloading Heads, All Aluminum Plumbing, Optic Socket, Vapor Recovery, Brake Interlock, Aluminum Front Ladder, RH Hose Tray, Aluminum Fenders, Composite Spring Suspension, 385 Single Tires on Aluminum Wheels, Steel DOT Rear Bumper....