New Replacement Aftermarket Slide Switch Knob With Set Screw And Allen Wrench 

For Federal Signal / Whelen / Code 3 / CenCom / SoundOff / Feniex

One (1) Slider Switch Knob 

Knurled Knob With Set Screw And Allen Wrench

Fits Post Size: .125" / 3.175mm 

Fits Most Slide Switches with .125" post

Federal Signal Fitment (+ Others): 

PA640 Siren 

SS2000 Smart Siren 

Pathfinder Series

6-Button Lightbar Controller 

SW400 Switch Box 

Signal Master Controllers 

Whelen Fitment (+ Others): 

CenCom Gold Controllers (Old Style Without Plastic Knob) 

WeCan 6 Button Controller 

Code 3 Fitment (+ Others): 

RLS 

Rocker Series Switch Boxes 

SoundOff Fitment (+ Others): 

Nergy 

Feniex Fitment (+ Others): 

4200 

Feniex One