Our replacement for the discontinued NSA Model 100S & NSA Model 100SX undercounter water filters. Our USA Filtration 5 stage filtration and purification system is manufactured in the USA and offers tremendous features and improvements to the old NSA models. Over the years we've managed to improve the old NSA model and offer a better NSA replacement. The USA-100 under sink water filter offers the ability to easily and quickly convert your current water filtration system into one that provides high quality, great tasting, filtered water. The water filter is installed underneath the sink and out of sight, which makes it ideal for customers who less interruption in the kitchen space. Dimensions: Height: 14" Diameter: 5" Shipping Weight: 8lbs 1 year pro rata warranty Made in the U.S.A. Reduces most EPA-listed contaminants The USA-100 comes with everything you see in the photos, including - 5-stage filtration and purification system with sealed construction - 2 ft water line -Includes easy-installation kit with compression fittings, Unique Bacteriostatic media (GAC/KDF) Prevents Bacteria (algae, fungi) growth for 36 months!! Take the Bacteria out of your drinking water now! This commercial grade in-line water treatment unit is designed for your home or business' municipally treated COLD WATER ONLY. Our KDF media is an improved product that provides extended life which leads to decreased maintenance and a control of micro-organisms. Included is a Granular Activated Carbon (GAC) filtration media bed that reduces impurities, heavy metals, bad tastes, odors, colors, and other chemicals, please refer to the GAC. Under Sink Water Filter USA -100