Gaskets

McMaster-Carr has all sorts of gaskets made of a variety of materials.

from Deedee Cheek, B44, Miller Time on 7 Oct 2012

McMaster-Carr

If you have the original aluminum ports and just need to replace the gasket material you can get a roll of 100 feet from this company for a VERY reasonable price. This is enough to do all the ports, twice. The part number is 8605K43 .

Deborah Streeter

Refrigeration gaskets for the Brewer 44, gasket for the lower fridge door that is flush with the cabinet:
McMaster-Carr Item number 93085K87 – Foam Rubber Bulb Seal, style 8. ½” width ¼” height – and the height is the big one for this application. On the website, enter the item # as a key word, and it will load the page with the gasket info.

from Deedee Cheek, B-44, Miller Time on 8 Oct 2012