The SJ series is a compact and low profile cassette based 4 port solenoid valve and manifold.  SJ1000 measures 6.5mm wide, while SJ2000 measures 7.5mm wide, and SJ3000 is 10mm wide and the SJ4000 is 15mm wide and they can be mounted together on the same manifold.  The Vacuum Release Valve with Restrictor is also available.