Specifications include, but are not limited to: Model: 1990 or Newer Capacity: 4,000-4,500 Gallon Tank Shell: 316 Stainless Steel 35 PSI Frame: Stainless Steel Overturn Protection: Spill Dam King Pin: Adjustable Cabinets: Preferred Rear Clean Out: (1) 3" at Rear of Trailer, (1) 3" in Front of Dam and (1) 3" at the Front Hose Tubes: (1) 8"x21' Curbside, (1) 8"x21' Street Side Manhole: (1) 20" Full Opening with Six Lockdowns Insulation: Non-Insulated Outer Jacket: Stainless Piping and Valves: Hydraulic Internal Valves to have a 3" Orb Valve to a 3" Part A and Dust Cap at Rear; Chicago Coupler Located at Rear of Tank for Pressurization; Chicago Coupler Located on Top of Tank Next to Manhole with Pressure Vent and Gauge