Accutron™ Digital Ultra™ Package B — 4-Cylinder Portable Accutron™ Digital Ultra™ Package B — 4-Cylinder Portable 56100 Includes: Digital Ultra™ Flowmeter, 4-Cylinder Portable System, Scavenging Circuit II. Where to Buy x Category Dealer PartnersSales RepresentativeStrategic MarketsSchools RepresentativeAccutron™ Equipment Sales Zip Code Find RepresentativeReset Select a category, input a zip code and click on Find Representative, or explore the complete list here.