A. Wrapper thickness
B. Side plate thickness
J. Bolt Hole Diameter
P. Cut-off Distance
Q. Cut-off Angle

Directions:
Using the above diagram, determine a measurement of your blower housing. Then look for that measurement in one of the appropriate drop down menus to the right, and click "go". You should see the above diagram change to the appropriate model with the measurements filled in. If you already know which Blower Housing Model you need to replace, you may use the drop down box below to locate it and check your measurements.