A dishwasher comprising: a main body; a tub configured to be inside the main body; a basket (51, 52) configured to be inside the tub to receive an item to be washed; an injection assembly (41, 42, 43) configured to spray water towards the basket (51, 52); and a duct (100, 300, 400) including: a first body portion (110, 310, 410) which extends in a first direction and configured to supply the water to the injection assembly (41, 42, 43), and a second body portion (120, 320, 420) through which the water flows, the second body portion (120, 320, 420) extending from the first body portion (110, 310, 410) along a second direction, wherein the duct is formed by coupling a first housing (140, 340) and a second housing (150, 350), the first housing (140, 340) forming at least a portion of the first body portion (110, 310, 410) and a portion of the second body portion (120, 320, 420), and the second housing (150, 350) forming another portion of the first body portion (110, 310, 410) and another portion of the second body portion (120, 320, 420), characterized in that the first housing (140, 340) and the second housing (150, 350) are configured to hook onto each other along the first direction. a main body; a tub configured to be inside the main body; a basket (51, 52) configured to be inside the tub to receive an item to be washed; an injection assembly (41, 42, 43) configured to spray water towards the basket (51, 52); and a duct (100, 300, 400) including: a first body portion (110, 310, 410) which extends in a first direction and configured to supply the water to the injection assembly (41, 42, 43), and a second body portion (120, 320, 420) through which the water flows, the second body portion (120, 320, 420) extending from the first body portion (110, 310, 410) along a second direction, wherein the duct is formed by coupling a first housing (140, 340) and a second housing (150, 350), the first housing (140, 340) forming at least a portion of the first body portion (110, 310, 410) and a portion of the second body portion (120, 320, 420), and the second housing (150, 350) forming another portion of the first body portion (110, 310, 410) and another portion of the second body portion (120, 320, 420), characterized in that the first housing (140, 340) and the second housing (150, 350) are configured to hook onto each other along the first direction. a first body portion (110, 310, 410) which extends in a first direction and configured to supply the water to the injection assembly (41, 42, 43), and a second body portion (120, 320, 420) through which the water flows, the second body portion (120, 320, 420) extending from the first body portion (110, 310, 410) along a second direction, wherein the duct is formed by coupling a first housing (140, 340) and a second housing (150, 350), the first housing (140, 340) forming at least a portion of the first body portion (110, 310, 410) and a portion of the second body portion (120, 320, 420), and the second housing (150, 350) forming another portion of the first body portion (110, 310, 410) and another portion of the second body portion (120, 320, 420), characterized in that the first housing (140, 340) and the second housing (150, 350) are configured to hook onto each other along the first direction.