Purification Performance - This filter uses a PP cotton filter element to effectively remove chlorine, fluoride, heavy metals, sand and other sediments from shower water. - Improved water quality helps make the water easier on the skin. Perfect Match - Compatible with multiple shower head styles: hydro jet shower head, vortex shower head, propeller shower head, and turbo shower head. - Designed for easy replacement in these common shower head configurations. Replacement Frequency - Replacement interval depends on local water quality and usage. - Replace the filter cartridge when it turns yellow or when shower flow is significantly reduced. - Regularly flush the filter cartridge to prolong its life and maintain performance. Product Size - Height: 3.7 inches - Diameter: 0.9 inches Applications and use scenarios - City water with chlorine: install to reduce chlorine exposure and improve skin feel during showers. - Water with sediment or sand: filters out particulates to protect shower components and improve flow. - Versatile shower head upgrades: suitable for hydro jet, vortex, propeller, and turbo shower heads, providing a straightforward replacement to maintain water quality.