Bodies and doors fabricated from 14 gauge steel. Continuously plasma welded seams. Increased tub opening for better access. Concealed hinges. Plexiglas viewing window. Doors are interchangeable and easily removable. Grounding provisions provided on tub only. 1/4-turn semi-flush oil tight latches are supplied to hold door securely closed. Print pocket is provided. Doors are sealed with poured-in-place polyurethane gasket. Mounting holes in rear of enclosure. Studs for mounting optional back panel (the Ultimate back panels have increased in size to accommodate larger foot-print installations).