Composite filler combined with activated carbon substrate: can adsorb residual chlorine and odorous impurities in water, improving the quality of daily bathing water. Built-in high-density PP cotton filter layer: intercepts rust, sediment and other large particle impurities, reducing scale buildup inside the showerhead. Standard universal outer diameter size: compatible with market four-point shower filters, allowing old filter replacement and installation by hand. Multi-layer filter material arranged in layers: low water flow resistance, unlikely to reduce water flow, ensuring smooth and uninterrupted bathing water. Carefully selected temperature-resistant filter materials: can withstand hot shower temperatures, not easily softened or deformed in high-temperature environments, ensuring stable service life., Manufacturer: zxa07270