Description
New Philphs Systm One Replacement Part UI Control Knob For PR-One 1099581 Description This is the small round UI Control Knowb (Dial) that sits on top of all PR System The Knowb is used to control the various settings and functions as well as to turn the on and off. The System One UI Control Knowb is dark, charcoal gray in color with a silver inlay around the rim. The sides of the Knowb are ridged to make them easy to grip. COMPATIBILITY: This Control Knowb comes standard with all "60 Series" System One Plus 260, Pro 460, Auto 560, Pro 660, Auto 760, etc. It can also be used to replace the lighter gray Control Knowb found on all "50 Series" System Plus 250, Pro 450, Auto 550, Pro 650, Auto 750, etc. INSTALLATION: When an old UI Knowb is removed or lost a small metal ring from inside of it can sometimes get stuck on your Knowb post. If that ring is present the new UI Knowb will not fit properly onto the post. To fit the new UI Knowb properly remove the metal ring, either from the post or from inside the new Knowb, before inserting the new UI Knowb onto the Knowb post.