Description
Normal Standard Sizes
Type A: 5.5 mm OD, 2.1 mm ID
Type A: 5.5 mm OD, 2.5 mm ID
Type B: 6.0 mm OD, 2.1 mm ID
Type B: 6.0 mm OD, 2.5 mm ID
Type C: 3.8 mm OD, 1.4 mm ID
Type D: 6.3 mm OD, 3.1 mm ID
Type E: 3.4 mm OD, 1.3 mm ID
HOW TO MEASURE THE JACK SIZE
Measure the Outside Diameter (OD) of your pipe or pipe fitting:
Wrap a string around the pipe.
Mark the point where the string touches together.
Use a ruler or measuring tape to find the length between the tip of the string and the mark you made (circumference)
Divide the circumference by 3.14159.