Product review (5 stars): Works great for the refrigerator
I got these lines for $3.63 with free shipping as an add on item.
They give you two of these 24 inch lines which works well if you are installing a filter in between these lines prior to going into your refrigerator.
It works great with no leakage. I used plumber's tape. They mailed these separately for some reason so I initially thought that they were giving me only one line.