lyhpccom DC 12V 3W 250mA 2 Position 3 Way Pneumatic Electromagnetic Solenoid Valve G1/8"

Just installed to control vacuum on dual tone exhaust. Works fine.The pipe threads would only take 1 turn.1 port pass through and plugged.1 port to vacuum.1 port to exhaust vacuum operators.Note, in off position it bleeds air through a port down the solenoid to atmosphere. Not obvious.But it works! 2 tone exhaust for cheap.