A dishwasher comprising: a frame defining a treatment chamber for items to be washed, a door ( 122, 126, 127) for selectively accessing the treatment chamber, at least one door hinge for rotationally coupling the door (122,126,127) to the frame, the door ( 122, 126, 127) comprising a door panel, at least one coupling system for coupling a decorative front panel (140',140") to the door panel, the at least one coupling system comprising: - a support member coupled to the door panel, - a sliding member coupled to the decorative front panel ( 140 ', 140 ") and slidably coupled to the support member for sliding with respect and parallel thereto, such that the sliding of the sliding member with respect to the support member causes the sliding of the decorative front panel ( 140 ', 140 ") with respect to the door panel, and - a regulation group comprising a rotatable regulation member that can be rotated by a user, and a conversion member coupled to the regulation member and to the sliding member for converting a rotation of the regulation member into said sliding of the sliding member, wherein the at least one coupling system being fixed to the door hinge, characterized in that the sliding member comprises an engaging element for engaging a respective panel pin (145',145") of the decorative front panel (140',140"), wherein the engaging element is a snap-fit element for the snap-fit engagement of said panel pin (145',145"). a frame defining a treatment chamber for items to be washed, a door ( 122, 126, 127) for selectively accessing the treatment chamber, at least one door hinge for rotationally coupling the door (122,126,127) to the frame, the door ( 122, 126, 127) comprising a door panel, at least one coupling system for coupling a decorative front panel (140',140") to the door panel, the at least one coupling system comprising: - a support member coupled to the door panel, - a sliding member coupled to the decorative front panel ( 140 ', 140 ") and slidably coupled to the support member for sliding with respect and parallel thereto, such that the sliding of the sliding member with respect to the support member causes the sliding of the decorative front panel ( 140 ', 140 ") with respect to the door panel, and - a regulation group comprising a rotatable regulation member that can be rotated by a user, and a conversion member coupled to the regulation member and to the sliding member for converting a rotation of the regulation member into said sliding of the sliding member, wherein the at least one coupling system being fixed to the door hinge, characterized in that the sliding member comprises an engaging element for engaging a respective panel pin (145',145") of the decorative front panel (140',140"), wherein the engaging element is a snap-fit element for the snap-fit engagement of said panel pin (145',145"). - a support member coupled to the door panel, - a sliding member coupled to the decorative front panel ( 140 ', 140 ") and slidably coupled to the support member for sliding with respect and parallel thereto, such that the sliding of the sliding member with respect to the support member causes the sliding of the decorative front panel ( 140 ', 140 ") with respect to the door panel, and - a regulation group comprising a rotatable regulation member that can be rotated by a user, and a conversion member coupled to the regulation member and to the sliding member for converting a rotation of the regulation member into said sliding of the sliding member, wherein the at least one coupling system being fixed to the door hinge, characterized in that the sliding member comprises an engaging element for engaging a respective panel pin (145',145") of the decorative front panel (140',140"), wherein the engaging element is a snap-fit element for the snap-fit engagement of said panel pin (145',145").