The Reliance Water Controls TPR15 6 Bar PTEM550857 features a 1/2" threaded connection for the inlet and a 15mm compression connection for the outlet, ensuring compatibility with standard plumbing systems. The valve's cartridge construction guarantees a prolonged lifespan and efficient service, delivering lasting reliability for your hot water system. It effectively protects against excessive pressure due to its maximum pressure rating. The valve is equipped with a 95mm probe length, allowing for accurate temperature monitoring. As a WRAS approved product, you can have confidence in its compliance and suitability for use in water supply systems.