The Reliance Water Controls TPR22 4.5 Bar PTEM575200 features a 3/4" MBSP Threaded connection for the inlet and a 22mm 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.