The Aquifer shower filter is designed to be compatible with most shower heads, effectively reducing chlorine and odors in the water while controlling scale buildup. This filter helps keep your shower clean and fresh, reducing skin dryness and irritation, and is gentle on your hair. It attaches easily to most showerheads and arms with a simple threaded connection. With a maximum flow rate of 4.0 gpm (15.1 lpm) at 60 psi (4.14 bar), the filter media lasts up to 8,000 gallons (30,000 liters) or approximately six months, the device includes an intuitive filter replacement indicator. Its simple and elegant design complements various bathroom styles, and it comes with one filter cartridge. VP