A gutter (20) for an evaporative panel (1) of a cooling system, comprisingat least one channel element (21) comprising a bottom wall (21a) and a pair of opposing side walls (21b) extending from the bottom wall (21a) and ending at the respective top edges (21c) of the channel element (21), andat least one joint (30) configured to sealingly connect one end of the channel element (21) to another component of the evaporative panel (1), the joint (30) comprising- an outer part (31) configured to be coupled to an outer surface of the channel element (21) and provided with a pair of flanges (31c) suitable to be arranged at the respective top edges (21c) of the channel element (21),- an inner part (35) configured to be coupled to an inner surface of the channel element (21) and provided with a pair of flanges (35c) suitable to be arranged at the respective top edges (21c) of the channel element (21),- at least one gasket (38) adapted to be interposed between the inner part (35) of the joint (30) and the inner surface of the channel element (21), and- clamping means (39) acting on the flanges (35c, 31c) to clamp the end of the channel element (21) between the inside (35) and outside parts (31) of the joint (30).
