Blue Robotics T200 Manual page 5

The thruster can also generate thrust in the reverse direction, although at
slightly lower force and efficiency.
Reverse Thrust: Less thrust and efficiency
Forward and reverse thrust performance specifications are available in the
T200 and T500 performance charts.
Propeller Direction
Every thruster includes both a clockwise rotating propeller and a
counterclockwise rotating propeller. The propellers are labeled with "CW"
(clockwise) and "CCW" (counterclockwise) for easy identification. Propeller