Accutron™ Ultra DC™ Oral Surgery Flowmeter Accutron™ Ultra DC™ Oral Surgery Flowmeter 31980-OS Includes: Ultra DC™ Oral Surgery Flowmeter and Directional Y Valve. 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.