HAUS-VORFILTER Dual-Stage Whole-House Pre-Filter - Dual-stage filtration for effective protection: the Spin-Down Sediment Filter for the whole house is designed to prevent contaminants such as sediments, deposits, rust, calcium and sand grains, and other impurities from entering your home and family. Washable and reusable. - Protects against large impurities in municipal water: sand, rust, worm eggs, and lime colloids. Shields all household appliances, washing machines, dishwashers, water purifiers, and water heaters. - 100% safe materials: double-deck 40-micron food-grade stainless steel mesh filter to reduce and capture particles larger than 40 microns. Valve head made of high-quality brass. Transparent filter shell withstands burst pressures over 725 psi (5 MPa) and offers frost protection and water hammer resistance. Includes frost-protection features and temperature range. - Flexible installation connections: stainless steel 316 filter element for convenient filtration and cleaning. Siphon front flush and backwash for thorough washing without clogging. No opening and cleaning required; only open the waste valve every month. Includes a function to store the cleaning time, recording the time of each cleaning. - Use scenarios: - New build or retrofit to protect the whole home from sediment and contaminants while ensuring clean water. - Municipal-water homes with high sediment, rust, worm eggs, or lime colloids; helps extend appliance life and reduce scale buildup. - Easy maintenance with front-flush/backwash design and monthly waste-valve operation.