How to Replace the InSinkErator F-1000 Instant Hot Water Dispenser Filter.
https://youtube.com/watch?v=1YStjTHEpvQ&si=4ibtXQqa6QZ31wL3
The instructions that come with the filter are wrong.
Step one, slowly turn the cartridge CLOCKWISE until it stops, to remove it.
Step two, insert the new cartridge and turn it COUNTER-CLOCKWISE until it stops.