We looked online at your website and studied the diagrams. Determined the part needed was the Filter Inlet Water Tube Kit and ordered it on a Saturday evening. The part arrived early on Tuesday.
Using You Tube as a guide was able to take off old part and install the new part. The hardest part was figuring out how to get the old tube disconnected.
I have used appliancepartspros.com several times to do appliance repairs.