1. 100 Micron Water Filter: The prefilter is constructed from foodgrade 304 stainless steel with a 100micron filtration accuracy, offering corrosion resistance, rustproof durability, and safety. The explosionproof transparent housing is made of aviation polymer material, designed to withstand frost and prevent bursting. 2. Reusable Water Filter: This backwash filter is compatible with various household water systems. It effectively removes impurities, reduces limescale buildup, extends appliance lifespan, and safeguards the entire domestic water supply at the source. (Not for drinking water filtration). 3. Easy Installation: Features a quickconnect filter element for effortless assembly—no professional guidance needed. Install the filter vertically in the pipeline with the drain ball valve facing downward. The arrow on the valve body indicates water flow direction. Ensure the drain ball valve is closed after installation. 4. Easy Maintenance: Clean the filter screen promptly if debris accumulates. Simply open the drain ball valve to flush out sediment.