Surface Mounted Roll Paper Towel Dispenser shall hold and dispense one 8 in. or 9 in. (203mm or 229mm) wide up to 800 ft (244m) long standard towel roll and one stub roll up to 4 inch (102mm) dia. Automatic transfer mechanism shall dispense towels from stub roll before starting new roll. Lever shall operate unit and shall adjust to dispense 2-1/2 inch, 4 inch, or 5 inch (64mm, 102mm, and 127mm) preset length of towel. Unit frame and cabinet shall be fabricated of alloy 18-8 stainless steel, type 304, 22 gauge. Door shall be fabricated of 18 gauge. Towel dispensing slot shall be smooth and burr-free for snag-free dispensing and user safety. Roll paper towel mechanism shall be enamel painted steel. Door shall be attached to cabinet at side with a full length 3/16 inch. (5mm) dia. multi-staked stainless steel piano hinge and shall be held closed with a tumbler lock keyed alike to other ASI washroom equipment. Structural assembly of all components shall be of welded construction.