Feature: 1. Important Parameter: The inner diameter of this exhaust pipe is 2.5cm, the outer diameter of this muffler is 2.4cm, the inner diameter of this muffler is 1.85cm. 2. Excellent Performance: Precision manufacturing, excellent performance, bright surface without burrs, stainless steel parking air heater exhaust pipe health and safety. 3. Practical: The exhaust pipe can be freely expanded, reducing the additional load caused by the muffler and ensuring the safety and reliability of the exhaust pipe operation. 4. Durable Material: This air heater pipe is made of high strength stainless steel materials, exquisite workmanship, long use time, durable, not easy to wear, corrosion resistance, reliable quality. 5. Wide Application: The parking air heater exhaust pipe is applicable for vehicles with air diesel heaters, please check before ordering to confirm compatibility. Specification: Item Type: Parking Air Heater Exhaust PipeMaterial: Stainless SteelInner Diameter of Exhaust Pipe: Approx. 2.5cm/0.98in Muffler Outer Diameter: Approx. 2.4cm/0.94in Muffler Inner Diameter: Approx. 1.85cm/0.73inStructure: Straight Application:Suitable for vehicles with air diesel heaters . Package List: 1 x Exhaust Pipe1 x Muffler1 x Rack2 x Clamp3 x Screw1 x Nut