I purchased a Samsung RS68A8820S9 refrigerator recently and now want to attach water line and filter. The supplied line has a connection to the water on one end and a connection for refrigerator on the other with a 20cm Grey connector in between. Where does the water filter attach? Do I remove the existing grey connector and replace it with the Samsung water filter ? If the existing grey connector is to stay then the only way to connect the water filter is to cut the existing line. Anyone out there who can advise on this ?