The Pelican PSF-1NH Premium Shower Filter Without Head is a powerful water filtration system designed to be installed with your existing shower head. This water filtration system works in a 3 stage process to remove water contaminants, pathogens, and nasty odors from your shower water so you are free to cleanse your body in refreshing and exceptionally clean water. This system will easily install with your existing shower head and offers you the option of using its included scented aromatherapy bar inserts to turn your shower into a relaxing and spa-like experience. In addition to all of these great functional features, the Pelican PSF-1NH Premium Shower Filter Without Head is also very easy to install and has a 9 month filter lifespan. If you are looking for a water filtration system to pair with your existing shower head, the Pelican PSF-1NH Premium Shower Filter Without Head is the perfect match.