The Wheelchair Access Large, compared to the Wheelchair Access Medium and our standard walk-in tubs, actually has a fairly different look due to its nearly full size swing-out door. This large door gives a lot of room for customers who will need to maneuver from a wheelchair or other seating devices into the tub. In addition, it comes enclosed on three sides unlike the Wheelchair Access Medium or our standard walk-in tubs. It's constructed of a gel-coat fiberglass.