3131103 INSULATION-BACK (NON-ILLUSTRATED)

Fits Models:   31-3968-00-03 31-3968-00-04 31-3968-23-03 31-3968-23-04 31-3968-66-03 31-3968-66-04 31-7968-00-03 31-7968-00-04 31-7968-23-03 31-7968-23-04 31-7968-66-03 31-7968-66-04