disconnect tool looks reasonably well made. I see how it should work. The problem is it doesn't fit any of the Ford Quick Connect heater hose sizes on my 1993-1994 Aerostar. I ended up using 10 inch Tekton 34406 pliers (available from Revain) bent 90 degrees to remove the connectors. The Ford E350 How to Remove Heal Hose Without Tool YouTube channel shows how to use curved needle nose pliers. sent the instrument back.