This Replacement Cartridge features a red spring and is designed for use with VC Series 3-Way Valves, ensuring optimal performance and reliability. Constructed from high-quality materials, this cartridge guarantees durability and long-lasting operation. Its precise design allows for easy installation and replacement, making it an ideal choice for maintaining your HVAC system. The cartridge meets industry standards for safety and efficiency, providing reliable control over flow in heating and cooling applications. Upgrade your valve system with this high-quality replacement cartridge.