General description This Faucet Spray Nozzle and Replacement Water Filter is designed to enhance your kitchen faucet by providing clean and safe drinking water. The hard water softener filter cartridge effectively removes chlorine, heavy metals (lead, mercury, nickel, chromium), ammonia odor, rust, and other impurities, ensuring reliable protection for your family. Technical specifications Type: Hard water softener filter cartridge Material: Improved calcium sulfite and high-quality PP cotton Quantity: 5 pieces Recommended replacement interval: 6-8 weeks Installation Tool-free installation designed to attach directly to the filter faucet. No toolbox required for replacement. Usage Regularly replace the filter based on water usage to maintain optimal performance.