The refrigerator (1000) includes a first surface (1); a second surface (2); an insulating element (3) arranged between the first and second surfaces (1, 2); and a sealing device (100). The sealing device (100) is associated with at least one of the first and second surfaces (1, 2) and includes: an external structure (10), an internal structure (20) and a connection region (30) that interconnects the external structure (10) with the internal structure (20); at least one first fixing element (31) arranged in the connection region (30); a through-hole (40) between the external (10) and internal (20) structures; wherein the at least one first fixing element (31) forms a male-female arrangement with at least one of the first and second surfaces (1, 2).