Features: 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 Pipe Material: Stainless Steel Inner Diameter of Exhaust Pipe: Approx. 2.5cm/0.98in Muffler Outer Diameter: Approx. 2.4cm/0.94in Muffler Inner Diameter: Approx. 1.85cm/0.73in Structure: Straight Application: Suitable for vehicles with air diesel heaters