Closed End Rotor Closed End Rotor Open End Rotor Open End Rotor Adjustable Rotor Adjustable Rotor Flex Tip Style Rotor Flex Tip Style Rotor Metering Rotor Metering Rotor Helical Rotor Helical Rotor Reduced Volume Rotor Reduced Volume Rotor Radius Pocket Rotor Radius Pocket Rotor Staggered Pocket Rotor Staggered Pocket Rotor Bolt-On Serrated Tips Rotor Bolt-On Serrated Tips Rotor Helical Metering Rotor Helical Metering Rotor Adjustable Polyurethane Tip Rotor Adjustable Polyurethane Tip Rotor