The Honeywell 5 Stage Kitchen Home Drinking Reverse Osmosis System RO is a multi-color plastic water filter that utilizes a reverse osmosis filtration method to remove micro-organisms and other contaminants. This deluxe 5-stage system includes 5 filters and 1 membrane, making it easy to install as a kitchen under sink system. Made by the trusted brand Honeywell in Canada, this system does not require any power to operate and effectively provides clean and safe drinking water for your home.