This 2 stage carbon block under sink water filtration system with digital battery display is very nice. It improves your water by removing contaminates as small as 0.5 microns so that it  clean and safe to drink. It has a carbon block filter and a polypropylene filter that work together to remove lead and chlorine taste from your water. It also helps remove impurities so that your foods tastes good as well. The under sink design makes it so it isn’t so bulky and doesn’t make it so you need the faucet mounted filters. You can use this with an universal standard filter faucet. The filter cartridges are easy to replace by twisting off. You don’t have to disconnect any hoses or hardware. The battery display will be when you are low. It comes with all the mounting hardware , tubing, quick connect adapter, and batteries. Over this filtration system is very stylish money saving and very nice to have!