Model 5715K17 is the choice when your electric hand-carry unit isn’t giving you enough air. Capable of running on a 20 amp breaker, this model will deliver 7.3 CFM, doubling the output of many direct-drive units. Additionally, the low-RPM pump and motor combine for quiet operation. ABOUT THE PUMP Heavy-duty, single stage, cast-iron twin cylinders, ball bearings, splash lubricated, hardened steel valve plates with Swedish lamellar reed valves, aluminum alloy connecting rods with automotive-style inserts, multi-finned 11″ flywheel, oil sight gauge. ABOUT THE MOTOR 1.5 HP, 1755 RPM, open drip proof, 115/230 volt – 60 HZ, ball bearings, overload protection w/manual reset.