Another oil pump product from Oriona is 3:1 oil drum pumps and oil stub pumps. The difference with Oriona 1:1 drum pumps is that the 3:1 model is capable to handle connection into drums, bulk tanks and piped systems up to 300 feet; while the 1:1 model manages short distances (up to 30 feet).
Oriona 3:1 delivers 5.8 gallon per minute free flow oil with extremely low noise levels and with low air consumption. It operates at 28-145 psi.
Purchasing this pump (either the drum pump or the stub pump) will reward you with ¼ inch air inlet, ¾ inch oil outlet, 2" bung adapter and a pressure relief valve to prevent damage to meters.
You can also buy it in packages, which include the pump itself, 18 ft hose and digital oil meter.