High Quality Carbon Fiber Cartridge: The activated carbon fiber cartridge has strong adsorption power and offers a long-lasting lifespan. The filter layer made of high quality non-woven fabric removes sediments and large particles. The filter body is made of food-grade ABS material for safety and reliability. One filter can purify around 780-Gallon clean water.Note: The display on our faucet water filter only works when switched to the filtered water mode. The LED display is driven by hydroelectric power system. Please ensure you switch to the filtered water mode when you need to view display information. This is a normal feature and not a product malfunction.Patterned UV Blue Light Technology: Our tap water filter is equipped with UV blue light to enhance water purification. The light is driven without any electrical power or battery. The innovative turbine magnetic generates energy through water flow enable the UV light to better purifying the tap water. (Suitable for Water Pressure Range: 0.1Mpa-0.4Mpa)Wide Compatibility with most Tap water faucet: Tap water purifier is easy to install without drilling. The package included 13 different adapter types, including thread adapters and universal connectors, to fits various types of faucets. Please feel free to reach out to us for any issues.Filter Life and Water Temperature LED Display: When switching to filter mode, the LED display on our sink water filter will show water temperature and real time filter lifespan. The LED display is also driven by hydroelectric power system, without any batteries or electricity. (Replace a new filter when the filter life indicator on the led screen turns red)