I've purchased a 2005 sailboat that has a canister filter for the galley
sink. The cannister, not including the threaded part, measures 4 5/8" in length and 3 1/8" in diamter. Those are the usable dimensions for the filter insert. The cannister only has a code molded into it (WC31-139P). An internet
search uncovers nothing that's pertinent.
Where are sources of the internal filters where I might find a filter to fit the cannister?
If the proper size filter is chosen, it appears it will fit into the cannister. Am I correct about this?