The tray applied under the housing is an essential component for optimizing the balance of underwater equipment and improve its stability on a plane in the air. This system allows the position of the sliding pads to be adjusted forward or backward, adapting the balance according to the specific needs of the photographer or the type of configuration used. The using of floats or weights facilitates the process. By adjusting the balance, the housing is prevented from tilting forward or backward, improving overall handling and reducing the diver's effort. Moreover, a well-balanced housing makes shooting operations underwater easier, allowing for more stable images and smoother movements.