Reporting question for Knob - Dunlop, MXR Knob for Pedal

Product:
Knob - Dunlop, MXR Knob for Pedal

Question:
Hi is this the right knob for a script reissue Phase 90? I bought the non-slot screw version and it doesn't fit

Answer:
If your pedal has a 1/4" solid shaft pot then this knob will fit.