The TR 444 has a length of 5.51 inches while the TR 78A has a full height of 5.75 inches.
They both have a height to bend of 0.94 inches.
They both have a base width of 3.24 inches.
They both have a stem diameter of 5 inches.
They can handle a maximum pressure of up to 150 psi.
They are usually bent at an angle of 85 degrees.
You will find the valves most useful for medium, light and heavy trucks applications.