High-Quality Material Construction: Crafted from durable Material, this return pin valve core ensures longevity and consistent performance. Its robust material prevents corrosion and withstands high pressure, making it ideal for underfloor heating systems.Optimal Thread Size for UFH Actuators: Featuring a precise M30 1.5 thread size, this underfloor heating manifold is engineered for perfect compatibility with UFH actuators. It offers a secure fit to prevent leaks and ensure efficient operation of your heating system.Easy Installation Process: Designed for hassle-free installation, this valve core can be fitted without the need for specialized tools. Its user-friendly design allows for quick setup, saving time and effort, making it a convenient choice for both professionals and DIY enthusiasts.Efficient Liquid Control: Engineered to control fluid flow effectively, this return pin valve core optimizes the performance of your heating system. It ensures smooth and efficient operation, maintaining the ideal temperature and enhancing the comfort of your space.Safe and Reliable Performance: Constructed with safety and reliability in mind, this valve core offers dependable operation. Its high-quality materials and sturdy design ensure that it functions smoothly, providing peace of mind and a consistently well-regulated heating environment.Colour:As ShownMaterial:MetalPackage Contents:6 * spring valve coreOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.