An emitter (120) is arranged inside a tube and is constituted by a resin molded body that has at least a recessed part and a through hole. The emitter (120) has a screen part, an intake volume adjusting part, a pressure reducing part, a discharge volume adjusting part, and a discharge part. The screen part is constituted by a slit (301) and a recessed part that intersects the slit (301) when seen in plan view. The discharge part includes an infiltration preventing part that is for preventing the infiltration of foreign matter from the discharge opening of the tube.
