The Mission Engineering SP1-L6H switching expression pedal gets the most out of your Line 6 Helix.
 
The SP1-L6H can be connected to inputs on the Helix Rack, Rack floor controller, and HX Stomp.
The linear potentiometer is matched exactly to the specifications of the Line 6 Helix for a precise and natural response. The pedal has a toe switch to turn effects on and off without requiring a separate footswitch.