Our fittings are designed to fit the following:
-A 3/4" uses 3/4" EMT Conduit (found in the electrical department)
-B 1" uses 1" EMT Conduit (found in the electrical department)
-C 1-3/8" uses 1-3/8" 16 gauge chain link fence tubing
-D 1-5/8" uses 1-5/8" 16 gauge chain link fence tubing
-E 1-7/8" uses 1-7/8" 16 gauge chain link fence tubing
For specific dimensions see the chart below: