Merfin Key Blanks

On fittings and dispensers the lock is almost always a standard cylinder bought from a lock maker, which means the key belongs to that cylinder and not to the brand on the front. The same key frequently opens fittings from several different suppliers.

Read the code off the lock face where it carries one, or off the original key, and match the blank to that. Where nothing is stamped, the blade profile is what has to be matched instead.