Effective water purification This multipurpose cotton filter reduces scale and heavy metals in shower water, delivering cleaner water and helping protect fixtures and appliances. Wide compatibility and convenient size Fits most standard shower hoses, bathroom water heaters, and kitchen faucets. Compact, durable housing with a simple, tool-free install. Filtration media and performance Cotton filter media trap impurities while maintaining steady water flow. Low pressure drop and reliable filtration; replacement cartridges available for ongoing service. Skin and hair care Cleaner water means gentler showers, with reduced irritation and softer skin and hair after use. Use scenarios - Family home shower: daily improvement in water quality for all passengers. - Rental or hard water environments: install on the shower or heater inlet to reduce mineral buildup. - Kitchen faucet or heater inlet: use where hot water is drawn for cooking, cleaning, or drinking water preparation.