Imaging you can get clean drinking water and crystal clear odd-free ice cubes right from your refrigerator. This ISPRING ice maker kit connects refrigerator to your existing water filter such as a reverse osmosis system. It will replace the small, ineffective and expensive refrigerator filters. This kit includes everything you will need to quickly and easily connect your refrigerator and water filter system. It comes with 20 ft. of polyethylene tubing, a quick-connect splitter, a quick shut off valve, and an inline quick fitting. For better compatibility and your convenience, it also includes a brass compression fitting kit that can be easily screwed on refrigerator's water inlet, where the refrigerator feed water line mounts. It fits any water filter systems that use 1/4 in. tubing (contact us for adapter if it is in different size such as 3/8 in.).