La Pavoni Push-In Manual-Fill Water Inlet Valve Knob The push-in knob for the manual-fill water inlet valve found on the old La Pavoni P-1, P-3, P-90, and early Bar and Pub models. COMPATIBILITY Fits: La Pavoni P-1, P-3, P-90, early Bar, early Pub INSTALLATION Simple push-fit knob replacement, no tools required.