- Air Return(12)
- Pedal both switch positions indexed(1)
- Pedal with spring return(3)
- Pedal without reset(2)
- Rotary Lever / Middle Position Closed(1)
- Rotary Lever / Middle Position Pressurised(1)
- Rotary Lever / Middle Position Vented(1)
- Rotary Switch / Middle Position Closed(1)
- Rotary Switch / Middle Position Pressurised(1)
- Rotary Switch / Middle Position Vented(1)
- Spring/Air Return(6)
