Quantity: one piece 40 micron filter: effectively filters impurities, sand and rust. The high quality stainless steel brass precision filter is used to effectively remove particulate impurities, sand and rust in the water. Easy to clean and replace: open the bottom valve, the filter is automatically cleaned up. Regular rinsing (daily or weekly) is recommended, depending on water usage, sand content and hardness, and can be reused High-strength transparent housing: plastic transparent materials and explosion-proof steel from aerospace and aerospace technology are used to facilitate visual monitoring of the filter. Whole House Water Purifier: This fountain water sedimentation filter can improve the water supply system. whole house water, ensuring that clean water covers the whole house, washing machine, water purifier, water, kettle, etc.