1. House prefilter: Double filtration is more effective. The Whole House Spin Down Sediment Filter is designed to block contaminants such as sediment, debris, rust, calcium, sand grains, and other impurities from entering your home and affecting your family. Enjoy cleaner drinking and boiled water with this flushable and reusable filtration system. 2. Protection: Filters large impurities in municipal tap water, including sand, rust, worm eggs, and lime colloids. Safeguards all household appliances, such as washing machines, dishwashers, water purifiers, and water heaters. 3. 100% SAFE MATERIAL: Features a duallayer 40micron foodgrade stainless steel mesh filter that captures particles larger than 40 microns (half the thickness of a human hair!) before they enter your home. The quality brass valve head ensures durability. The transparent filter housing can withstand burst pressures exceeding 725 psi (5 MPa) and offers frost resistance and impact protection. Includes frostproof materials and design, with a wide temperature range. 4. Flexible installation connections: Equipped with a 316 stainless steel filter element for easier filtration and cleaning. Features siphon front flush backwash for more thorough cleaning without clogging—no need to open and clean manually. Simply open the drain valve monthly for effortless maintenance. Includes a cleaning timesaving function and the ability to record each cleaning session.