chemical resistance spray triggers Unsurpassed Chemical Resistance, Synthetic O-ring and piston cup hold up against the harshest chemicals. Less Fatigue, Long Lasting Outer body protects piston assembly to prevent damage during use and storage. High output and an extra large spray pattern makes quick work of any job Comfort Design Three-finger trigger and rear support makes extended use more comfortable Applications: Harsh Chemicals, Automotive, Car Wash, Auto Detail, Carpet Spot Cleaning, General Use.