Faucet Water Filter - This hard water softener filter cartridge can remove chlorine, heavy metals (lead, mercury, nickel, chromium), ammonia odor, rust and other impure sediments that cause hardening of the water. Enjoy the cleanest water experience, reliable protection for the family. Pure and solid materials - carefully compare our authentic faucet filter replacement cartridge with low-cost manufactured models and you will quickly see that we use the BEST materials - ENHANCED Calcium Sulfite - you get the best, enjoy the cleanest water. Tool-free installation - Designed for Filter faucet attachment. When the time comes to replace your faucet's water filtration cartridge, you don't need to break out the toolbox. Our water filter for faucet replacement is easy to make and requires no tools. Economical - quality PP cotton, even used for a long time, it does not cause clogging. Replace the filter regularly depending on the amount of water consumed, 6 to 8 weeks is recommended. Replacement filter cartridge for faucet head filter with 5 pieces/set. Generally, it is an annual consumption. Customer Satisfaction Guarantee - We also have 24-hour customer service for you. Answer all your questions. We confidently offer a 30-day money-back guarantee on every purchase.