Lelit Silent kit for vibration pump (120V) L'Heureux Part Pumps 1st line.com Part Pumps 1st line.com # First listen: the quite Decent pump., You asked for a quiet espresso pump, so we listened!, Three years in the making, this pump is practically inaudible at normal espresso water flows. Only at the Replace Gaggia Classic pump with quieter option? Lets see if this will Improve something. Im sure it will reduce the noise by 40% But they do say a pressure regulator helps with noise and to stabilize water flow aswell