(Mfg. 6/04), Serial No. TT30722, Model BATT-55-3-DC, DOT406AL, Aluminum Construction, 5,500 Gallon Capacity, 3-Compartment (2170, 1160, 2170), All Double Bulkhead, Cable Operated Internals, "Y" Bottom Load Heads w/ Brake Interlocks, Roto Tags, Vapor Recovery w/ Brake Interlock, Offside Gravity Drops & Vapor Recovery, Optics Socket, Air Ride Suspension, Cam Style Drum Brakes, 295/75R22.5 Tires On All Aluminum Wheels, (1) L/H Side Hose Tube, (2) R/H Side Hose Tubes w/ Fitting Box @ Front Of Trailer, Aluminum Ladder @ Front Of Trailer...