General description 40 Micron Filter: Effectively filters impurities, sand, and rust. High-quality stainless steel brass precision filter removes particle impurities, sand, and rust in the water. Easy cleaning with an automatic cleaning feature when the bottom valve is opened. Recommended rinsing frequency varies based on water consumption, sand content, and hardness; can be reused. Transparent and high-strength shell made from explosion-proof plastic and steel for visual monitoring of the filter. Improves the water supply system for the entire household, ensuring clean water for washing machines, water purifiers, kettles, etc. Extends the service life of appliances by using this pre-filter.