Proximity sensing no-touch unit holds and dispenses one 8" diameter (O203) x 8" wide (203) standard towel roll up to 800 ft. (244m) long and one 8" wide (203) stub roll up to 4" diameter (O102) and automatically changes over to main roll when finished with stub roll when feed tabs are properly engaged. Waste receptacle has a capacity of 9.9 gallons (37.3 L).