Heating Valve Adapter 304 Stainless Steel Radiator Valve Thermostat Head With Strips M30 X 1.5 Radiator Thermostat Adapter for Ra Rav Ravl Valve. Premium Quality Material: All Thermostat Adapters are crafted from 304 stainless steel, offering enhanced rust resistance, corrosion protection, and high-temperature durability. Comfort Grip Design: The adapter's surface is covered with vertical Radiator Valve Thermostat Head With Strips, providing a comfortable grip and a more aesthetically pleasing appearance. Wide Application Range: RA adapters are widely used for various radiator thermostat adapter and thermostat heads, ensuring versatility in different heating systems. Compatible Thread: M30 x 1.5. Secure Fitting: Designed with precision threading, our thermostat adapters guarantee a tight fit, preventing leaks and maintaining efficient operation within your heating systems.