They are offering full water filtration system installation.\nThe installation includes drilling a hole in countertop, wood, granite and all the others. \nBut apparently they don't do the drilling because they don't.\nThinking that installation of the fauset should be included in the installation of the water filtration system but apparently for them it's not,  so before you call them make sure that you have the hole for the fauset drilled already otherwise don't bother because they will not do it for you.