The Home Duo Water Softener + Taste Filter System is ideal for homes that are smaller than 1,500 sq. ft. and experience symptoms of hard water and have bad tasting or smelling water in their homes.Prevents hard water scale buildup. Removes existing hard water scale. Compact design - fits almost anywhere. Simple cartridge replacement. Cartridge and filter last up to 6 months. Removes sediment and most chemicals from house water.Developed from 30+ years of commercial experience. Extends the life of your water heater, plumbing fixtures, and appliances. Eco-friendly - no salt, no phosphates, no wastewater, no electricity.Retains healthy minerals in your water. No slick feeling like you get with other water softeners. Complies with NSF/ANSI Standard 42Included in package: System housing (1 head and 2 sumps), Mounting bracket, 1 Softener cartridge, 1 Carbon taste filter, 1 Wrench, Tapcon screw pack, System head screw pack, 2 O-rings, Lubricant, Installation guide and Warranty/Registration card.