26A304 T3 PUMP,TRANSFER,3:1 Graco 26A304 T3 Supply Pump (Stainless Steel): 3:1 Fluid to Air Ratio Piston Pumps Easier to maneuver – The overall height of the T3 is 3.7 inches (9.4 cm) shorter above the drum than the T2, making it easier to remove from the drum inside of a spray rig. More quiet – Studies show the T3 Transfer Pump is about 3x more quiet than the T2 Transfer Pump. Less maintenance – the Merkur air-motor is based on air pilot valve technology. The air-motor switching is purely pneumatic. This differs from T1 and T2 Transfer Pumps, which use a mechanical reversing mechanism in the air-motor.
– Easier to maneuver – The overall height of the T3 is 3.7 inches (9.4 cm) shorter above the drum than the T2, making it easier to remove from the drum inside of a spray rig.
– More quiet – Studies show the T3 Transfer Pump is about 3x more quiet than the T2 Transfer Pump.
– Less maintenance – the Merkur air-motor is based on air pilot valve technology. The air-motor switching is purely pneumatic. This differs from T1 and T2 Transfer Pumps, which use a mechanical reversing mechanism in the air-motor.