The OTR 7/8" 13-Spline Dump Pump is the perfect solution for those who need to switch from low to high pressure quickly and easily. This pump is designed to be used with truck air and features field adjustable relief settings. The low setting is perfect for dump bodies, while the high setting is ideal for live floors. This pump is easy to install and use, making it an excellent choice for the job. FleetPride is your First Click in Heavy Duty®.