The LINFA toilet pre-filter features a practical and elegant design. The filter prevents toilet pipes from bursting due to icy temperatures, protecting homes in cold winter areas from costly water damage. The use of a high-quality PP filter cotton filter element can effectively filter all kinds of harmful bacteria, impurities, insect eggs, rust, and other substances in the water. LINFA also solves common problems such as clogged smart toilet nozzles and the accumulation of sediment in the water, which could lead to malfunctions and require frequent repairs.