Precise four channel vacuum indicator designed specifically for intake synchronization of engines with multiple carburetors or throttle bodies (maximum vacuum rating for this tool is 40cm Hg). For use with any 2, 3 or 4 cylinder four stroke motorcycles. includes hang hook to clip onto the handlebars...

Manometer fluid refill for 08-0411 Syncpro carb tuner. It is in blue color.