Here is replacement oil filter for a Hill-Rom MedPlus 1.5 HP RC-0025  oil lubricated rotary vane vacuum pump - commonly used in medical applications.          

This is the automotive spin-on type oil filter which should be changed at least every other oil change. 

E-mail me with any questions.   Thank you for taking the time to look at this item.  I also have rebuilt vacuum pumps available.

I charge actual shipping costs.