The Quincy QP series is designed for tougher 175 PSI applications where traditional splash lubrication just won’t measure up. The QP heavy-duty, cast-iron compressor has an oil pump for pressure lubrication to the crankshaft, bearings and connecting rod up to the wrist pins. The pressure lubricated system allows for a smoother continuous operation. Coupled, with an attractive price, QP balances cost effectiveness with longer life to maximize your investment.