Replace 770301 Paper Towel and Toilet Tissue Dispenser Key 5 Pk The 770301 Paper Towel Dispenser Key, opens extensive line of Paper Towel, Folded Towel, Roll Towel and Center-Pull Dispenser models. This style key also operates in select KC models of Bath Tissue Dispensers. A brand-new, unused, unopened, undamaged item in its original packaging The following is a list of the compatible dispensers that use the KC# 770301 - Paper Towel Dispenser Key.