The Caleffi Circlip Pressure Relief Valve 6 Bar (F0000412) is designed to provide reliable protection for your plumbing systems. With a pressure rating of 6.0 bar, this valve is ideal for use with the MK3 Caleffi Multibloc. It features a durable circlip connection for secure and efficient installation, ensuring long-term performance and safety. Perfect for maintaining optimal pressure levels in your system and preventing damage from overpressure.