Enjoy Real Protection from Tap Water Contaminants. Whole home water filtration is a proven final barrier against many of the harmful chemicals and treatment byproducts that are found in all city water. The President’s Cancer Panel recommends home water filtration to reduce or eliminate our exposure to over 80,000 unstudied and unregulated contaminants. To safeguard your family from the harmful chemicals found in all city water, Environmental Water Systems has engineered the highest quality, highest-grade water filtration appliance on the market. Healthy, delicious water to every sink and shower in your home – with just one appliance Hassle-free appliance does not require any regular maintenance or frequent filter changes Protects your family from contaminants that are absorbed into the skin while showering and bathing 100% pure granular activated carbon (GAC) – no silver impregnation, no metal resins, no fillers Proprietary GAC is the highest grade and highest iodine rating available Removes and reduces chlorine, chloramine, THMS, and VOCs** No salt, no magnets, and no metal resins Meets or exceeds all FDA, NSF, ANSI, and California State standards and compliances Easy installation, comparable to the installation of a water heater 10-year or 2,500,000 gallon filtration media lifespan¹ 10-year warranty Suitable for city tap water or well water*   Made in California, USA The CWL Spectrum installs at your home's main water service line (usually located in your garage) to filter all the water in your home. The appliance adapts to any plumbing line size (from 3/4″ to 1 1/2″ common sizes) for easy install and installing this water filtration appliance is as easy as installing a water heater. Complete installation information comes with every appliance, so any plumber can do it. Installation requirements are simple – connection to your home's main water service line (usually located in your garage, or next to your water heater), a convenient place to drai