1The Contractor Airless Spray Gun by Graco features a 2-finger trigger configuration and an operating pressure of 3600 psi, making it suitable for exterior painting projects. This handheld spray gun is powered by air and includes a spray gun tip, suitable for use with exterior paint. With a 1-year manufacturer warranty and a horsepower of 1 hp, this unit is designed for efficient and high-quality painting results. The model 288420 is specifically designed for exterior painting applications, providing a reliable and convenient tool for home improvement and building projects.