MettleAir FV320 Pneumatic Pedal Valve with Momentary and Spring Return, 3 Way, 2 Position, Foot Operated, 1/4" NPT (Pack of 10) Type: 3 Way 2 Position Foot Pedal Pneumatic Valve Model: 3V110-06-AC220 Ports: 1/4" NPT Exhaust: 1/8" NPT