The MSL can seal cartons a mere 2.5" high and the upper mast allows for an extra 4" carton height extension on the upper assembly. Available in our standard baked enamel finish and food grade 304 stainless steel for 21 CFR 110 compliance. Additional options available for the MSL model include: Spare Parts Kit, high speed motor upgrade (up to 125 ft. per min.), locking heavy-duty casters, infeed/exit conveyor w/L-bracket stabilizer, 3-flap folder, interlock safety gates.