MettleAir 2V025-08-DC24-1PK Solenoid Air Valve, 2 Way, 2 Position, 24V, DC, 1/4" NPT Type: 2 Way 2 Position Single Solenoid Valve with Manual Override NORMALLY CLOSED/Spring Return Model: 2V025-08-AC220 Coil: 24V DC, LED Light Ports: 1/4" NPT