GRACO - President air powered pump. Graco's President 10:1 is ideal for lorry, trailer, or in-plant locations. It is able to pump directly from the drum and is equipped to handle a variety of materials. Part Number Air Motor: 207-352 Part Number Pump: 206-420 Ratio: 10-1 12 l/min Max. 180 PSI (12 BAR) Max Air.