High-performance 400 GPD RO System 20", equipped with an Anti-Scalant Cartridge. This compact, easy-to-install system ensures a constant supply of purified water for your home or business. What sets it apart is the Anti-Scalant Cartridge, which prevents scale buildup, extending the system's life and reducing maintenance. Say goodbye to impurities and limescale issues and enjoy pure, hassle-free water.