[Upgraded Version] Carbon Fiber Filter Replacements for Bathroom and Kitchen Faucet Water Filter -4PCS

[Why does my filter cartridge turn yellow or black so quickly?]-- This is a normal sign that the filter is actively working. The outer PP cotton layer is designed to capture large particles such as rust, sand, and other visible impurities.Yellowing within a few days is expected – it shows that the filter is effectively removing iron rust and sediment from your water.

• This is an upgraded version filter replacements for Hillien bathroom and kitchen faucet mounted water filter. It has a longer lifespan and effectively removes residual chlorine.
• [Advanced Carbon Fiber Filtration Technology] -- Utilizes high-density activated carbon fiber to effectively reduce chlorine, heavy metals (lead, mercury), sediments, and organic impurities while retaining beneficial minerals. Provides crisp, great-tasting water instantly.
• [Durable & Long-Lasting Performance] -- Each filter cartridge delivers up to 3 months of use—ideal for households of 1-4 people.