The TwistSeal® Mini (40mm) Zone Valve Replacement Cartridge, complete with O-ring, is essential for maintaining the efficiency of your heating system. This cartridge is specifically designed for 40mm applications, ensuring a perfect fit and optimal performance. Made from high-quality materials, it provides durability and reliability in demanding environments. The included O-ring enhances sealing capabilities, preventing leaks and ensuring efficient operation. This replacement cartridge meets industry standards, making it a trusted choice for upgrading or repairing your heating system.
