Quality NEW comparable Replacement single filter for the following suction vacuum models:   
Bison 3, 5, 7, 9, Dental-EZ Bulldog 550, Bulldog QT1, QT2, QT3. May be used with your maintenance of Ramvac Bison, and Bulldog filters.
 
Refer to your user  manual Oil, is easily available at your local Walmart.
OEM name is for reference only we are not nor do we imply we are an OEM authorized dealer.
Ask about qty discounts