Upgraded 10% Crosslink Resin: This system features upgraded 10% crosslink resin, which is more durable than standard 8% resin, ensuring long-lasting water softening performance. The higher crosslink percentage enhances the resin's ability to withstand chlorine and other chemicals, prolonging its lifespan and maintaining its effectiveness in softening water. Fleck 5600 SXT On Demand Control Head: The digital metered control head allows you to program your hardness level and system size, automatically calculating regeneration cycles for optimal efficiency. This advanced control head simplifies the operation and maintenance of the system, ensuring that it regenerates only when necessary, saving you water and salt. Technical Support and Installation Instructions: The installation instructions are provided, and we have many online videos to guide you through the process, making it easy for you to install the system yourself.Our team of experts is available to help you with the installation process, ensuring that you set up the system correctly for optimal performance. 1" Bypass Included: The system comes with a 1" bypass, making it easy to bypass the softener for maintenance or other purposes. The bypass valve allows you to isolate the softener from your plumbing system without shutting off the water supply to your entire house, providing convenience and flexibility when needed. Complete System Ready for Installation: The system is a complete package, ready for installation. It includes the Fleck 5600SXT Digital Metered Valve, bypass, brine tank, and installation instructions. You just need to connect it to your specific plumbing connections to start enjoying soft water. Complete System Ready for Installation: The system is a complete package, ready for installation. It includes the Fleck 5600SXT Digital Metered Valve, bypass, brine tank, and installation instructions. You just need to connect it to your specific plumbing connections to start enjoying soft water.