The Whirlpool WHES30E 30, 000 grain water softener is ideal for families of 1-4 people looking for a reliable way to soften their water. Whirlpool water softeners eliminate embarrassing mineral stains, use less detergent in the washing machine for cleaner, brighter clothes and softer feeling fabrics. In addition, Whirlpool water softeners help your water-using appliances last longer by allowing them to run more efficiently. Soft water also helps to keep your hair and skin feeling healthy and soft. Soft water has been known to help alleviate some symptoms for those that suffer from skin conditions such as psoriasis. Whirlpool water softeners can help keep your hair safe from mineral buildup and clear water iron, keeping your hair color vibrant for longer periods of time. Whirlpool water softeners employ demand initiated regeneration meaning the system will only regenerate based on your hardness level and how much water you actually use, this results in significant salt and water savings. It will not waste water by regenerating (like competitor models) while you are on vacation and you will not run out of soft water if you use more water than usual. Whirlpool water softeners also come with simple to program electronics and include a low salt indicator light and work on city water or well water. Over time, water softeners also keep your water-using appliances (water heaters, dishwashers, washing machines, etc. ) working efficiently, last longer and save energy. All Whirlpool water softeners come standard with a 1-year manufacturer's parts and labor, 3-year limited electronics, and 10-year limited on the tanks. The full parts and labor can be extended to 2 years with the purchase of 3 bottles of Whirlpool WHEWSC water softener cleanser within the first year of ownership (sold separately). All systems include installation kit, bypass valve and come ready to connect to 1-inch male pipe thread. Questions? Call the helpline at (866) 986-3223. Note: Due to variances in production and assembly, the water softener valve height may vary by up to 1/2" from an existing water treatment system, including existing Whirlpool models. This potential change in valve height will not affect system performance.