The pipe reducer coupling is designed to provide a secure and leak-free connection between pipes of different diameters. Its robust plastic construction ensures durability, while its compact design allows for easy installation. Suitable for use in car heaters, parking heaters, and ventilation ducts, this reducer makes efficient airflow and optimal heating performance. Features -Color:Black -Material:Plastic -Size:9.70X9.70X5.80cm/3.81X3.81X2.28in -Note: 60-90 mm -High heating efficiency: the pipe reducer design ensures efficient heat transfer, quickly delivering hot air to the heater and improving overall heating performance -Accurate flow regulation: the integrated buffer valve allows for precise control of hot air flow, ensuring a stable heating process and preventing temperature fluctuations -Wide range of applications: this product is compatible with various parking heaters and can be used in multiple settings, including automobiles, trucks, and boats - and reliable: constructed from plastic, it offers excellent resistance to wear, making a long lifespan and dependable performance -Effortless installation: with its simple design, the product can be easily installed without requiring skills, making the process quick Package list: 2 x piping reducer