Avoid flow restricting t connectors with the y connector. Easy and effective way to split a water path without restricting flow. Three patented laguna click-fit connectors to make installation quick and easy. Allows for the connection of two hoses with different diameters or for the connection of one pump with multiple filtration. Size is 1 1/2 Inch. Dimensions are 2.25 X 6 X 12 UPC Code = 015561206792