Fluid delivery system and method of producing a fluid delivery system

Fluid distribution device comprises a gas-tight support (12) having a coating (16) of porous material on at least one side (14). Macroscopic flow channels (22) are formed in the coating. Independent claims are also included for the following: (1) fuel cell or fuel cell stack comprising an electrode-membrane unit with electrodes connected to the above fluid distribution device; and (2) process for the production of the fluid distribution device.