This anti scale water filter uses physical filtration and requires no electricity. It is designed to reduce mineral scale, protect appliances, and improve water quality at the point of use. Non electric filtration: simple, safe, and convenient. It blocks scale without reducing water flow or using power. Visible, durable housing: clear/white shell lets you monitor filter condition and easily filter elements when needed. Versatile protection: suitable as a shower filter, shower head prefilter, and a whole home prefilter to shield taps, washing machines, purifiers, and water heaters. Quick maintenance and compatibility: replaceable filter elements and compatibility with standard fittings fit most homes and setups. Performance you can rely on: reduces scale buildup, helps extend appliance life, and maintains steady water pressure. Use scenarios Shower upgrade: install to minimize lime scale in hot water and improve skin and hair feel. Water heater prefilter: place upstream of the heater to reduce scale formation and sustain heating efficiency. Whole home protection: install at the main line to provide cleaner water to appliances such as washing machines, purifiers, and heaters. This filter provides a practical, non electric solution for homes dealing with mineral scale.