Synthetic O-ring and piston cup hold up against the harshest chemicals, even D-limonene. Up to 40% greater output per stroke significantly reduces the number of times you pull the trigger. High output with an extra large spray pattern. Outer body protects piston assembly from damage during use and storage. Great for tough tasks like car washing, auto detailing, carpet spot cleaning and more. 9 1/2" tube length. 24 per case