Flange arrangement for a filter unit

A flange unit for a filter unit for positioning in a water treatment device, the water treatment device including a water reservoir and a suction head, the flange unit comprising:

• a base plate including a central recess for accommodating a filling piece of the suction head;
• a connector unit for detachably connecting the flange unit to an inner side of the water reservoir;
• a closure element for closing the recess;
• and
• a handle unit for detaching the connecting unit from a flange holding device and for carrying the filter unit;
• wherein the handle unit includes a first arm element, a second arm element, and a hand grip element, the first arm element being movably connected at a first end via a first hinge and the second arm element being movably connected at a first end using a second hinge to the base plate, and the first arm element being movably connected at a second end via a third hinge and the second arm element being movably connected at a second end using a fourth hinge to the hand grip element;
• wherein the base plate has an upper side, a lower side, a front edge, a rear edge, a first side edge and a second side edge, and
• wherein the connector unit includes a first attachment at the front edge and a second attachment at the front edge.