A fuel filter for use in a vehicle, the fuel filter comprising: a housing defining an axial centre; and a fluid drain off system comprising: a switch; a trigger device for the switch, the trigger device arranged in the housing of the fuel filter, wherein the switch is arranged to be selectively triggered by the trigger device upon fluid contaminant reaching a predetermined level; a float, movable together with the trigger device in response to a level of fluid contaminant, wherein the float comprises a portion radially spaced from the axial centre of the housing; a fluid passage configured to be selectively opened in response to the triggering of the switch to allow fluid contaminants to be drained from the filter; and a baffle comprising a guide radially spaced from the axial centre of the housing to guide the corresponding portion of the float, wherein the trigger device is incorporated inside the float at a radially central hub location of the float, wherein the float comprises multiple spokes, and wherein the trigger device is arranged at the axial centre of the housing, and a radially outer surface of the guide guides the float. a housing defining an axial centre; and a fluid drain off system comprising: a switch; a trigger device for the switch, the trigger device arranged in the housing of the fuel filter, wherein the switch is arranged to be selectively triggered by the trigger device upon fluid contaminant reaching a predetermined level; a float, movable together with the trigger device in response to a level of fluid contaminant, wherein the float comprises a portion radially spaced from the axial centre of the housing; a fluid passage configured to be selectively opened in response to the triggering of the switch to allow fluid contaminants to be drained from the filter; and a baffle comprising a guide radially spaced from the axial centre of the housing to guide the corresponding portion of the float, wherein the trigger device is incorporated inside the float at a radially central hub location of the float, wherein the float comprises multiple spokes, and wherein the trigger device is arranged at the axial centre of the housing, and a radially outer surface of the guide guides the float. a switch; a trigger device for the switch, the trigger device arranged in the housing of the fuel filter, wherein the switch is arranged to be selectively triggered by the trigger device upon fluid contaminant reaching a predetermined level; a float, movable together with the trigger device in response to a level of fluid contaminant, wherein the float comprises a portion radially spaced from the axial centre of the housing; a fluid passage configured to be selectively opened in response to the triggering of the switch to allow fluid contaminants to be drained from the filter; and a baffle comprising a guide radially spaced from the axial centre of the housing to guide the corresponding portion of the float, wherein the trigger device is incorporated inside the float at a radially central hub location of the float, wherein the float comprises multiple spokes, and wherein the trigger device is arranged at the axial centre of the housing, and a radially outer surface of the guide guides the float.