For one, one gives more safety assurance than the other. Although both are made from carbon steel which provides a high resistance to solvents, acids and bases, it is not a total guarantee that your pump would not cause a massive explosion in your work place.
It is a fact that a movement of liquid creates static electricity. If it flickers, it will start a fire if there is flammable component in the air. Safety pumps are made to prevent this to happen when handling combustible liquids.
This Safety Carbon Steel Drum Pump is a good money value for the features it offers. Supplied with 2” NPS bung adapter, the safety pump fits 15 to 55 gallon drums. It has built-in bonding and grounding wires equipped with heavy-duty alligator clips. The carbon steel body is polished with fluoropolymer piston, packing and gasket. There is also an internal flame arrestor in the plated steel suction tube, which makes it fire proof.
More information on the prices and delivery on this amazing item, please browse here.