Spray hose is now commonly seen in newly-designed kitchens.  This kind of hose has now become a necessity when it comes to working around the kitchen.  If you want to install a spray hose unit yourself, you can do so.  Just purchase a set from one of the many online stores in the Internet and wait for it to be delivered to your house.  Installing it is also easy as there is an easy step by step process or manual on how to do this yourself.