From Sage Oil Vac, the Professional Series model 21120 with remote operation features four 60-gallon new fluid tanks and one 120-gallon used fluid tank. The evacuations process moves used oil or fluid into an enclosed Oil Vac tank. By pressurizing new fluid tanks, new fluid is then delivered to the engine. The unit has no pumps and is fully enclosed. The Used Filter Receptacle collects oil from the filter, and with a quick-connect fitting, used oil is vacuumed into the used fluid tank.