Product review (5 stars): Inexpensive replacement for Fridgedaire Professional Series
Local home stores do not offer a 5/16  option, so I checked with Sears and other appliance/plumbing retailers to obtain the same $15 quote...which is ridiculous for a $1 part.  I located this part for a GE unit and it works perfectly for 1/3 of the price!  Great product, great price, and it arrived promptly from the purchased company.  To clarify, this is the fitting that attaches the door ice/water line to the refrigerator side - allowing the freezer door to be removed.