Graco, Contractor PC, Airless Spray Gun, with RAC X LP 517 SwitchTip, 17Y043Experience Less Fatigue, More Control with Graco's Contractor PC Airless Spray Gun. Graco's Contractor PC Airless Spray Gun gives you the the most comfortable spraying experience. With the Exclusive Graco innovations, you can spray all day with less fatigue and more control A custom fit with on the fly trigger adjustments to provide the flexibility for greater control to deliver an exceptional finish on every job, every time. The RAC X LP 517