Abstract: A device for separating water from debris and collecting rain water includes an upper portion and a lower portion. The upper portion includes an inlet and a structure for separating water from debris with surface tension and surface area. The lower portion is removably mounted to the upper portion and includes a first outlet configured to be fluidically coupled to a downspout and a second outlet configured to be fluidically coupled to a container for holding collected rain water. A rain water collection system including the device is also provided, as well as a method of using the device.