【Package Includes】: Our package includes 4pcs radiator adapters as well as necessary screws and L-shaped wrenches, providing all the necessary items for installation. 【About Size】: The diameter of the thermostat adapter is 2.88cm/1.13inch, the inner diameter is 2.2cm/0.87inch, and the height is 1.9cm/0.75inch. 【Premium Stainless Steel】: The radiator adapter is made of stainless steel material, which is sturdy, corrosion-resistant, and has a long service life, ensuring reliable performance in various environments. 【Suitable Specification】: The thermostat adapter conforms to the M30x1.5 thread specification, providing precise and secure fit for suitable heating valves and thermostat heads, minimizing leakage and ensuring efficient working. 【Dedicated Customer Support】：We're here to help. Message us anytime — We typically respond within 24 hours and stay with you until the issue is sorted., Weight: 0.220462262 pounds, Manufacturer: BDKMMS