Automatic Roll Towel Dispenser Mechanism shall dispense one 8″ wide x 8″ diameter [203 x Ø203] standard towel roll up to 800 ft. (244m) long and one 8″ wide [203] stub roll up to 4″ diameter [Ø102]. Automatic Touchless Roll Towel Dispenser shall be powered by four (4) D-size batteries (not supplied) or by C-UL-US and CE approved internal low-voltage adapter (supplied separately, Part# 72-ACA) using 110-240VAC, 50/60 Hz and providing output of 6VDC @ 2A and shall operate automatically to activate towel dispensing when hands are placed in sensor zone. At each activation, unit shall feed out a length of towel selected by owner by setting length, delay and paper saver switches. Unit shall have an internal towel cut-off bar.