Tank with Replaceable Filter Unit, e.g. for Diesel Exhaust Fluid

An assembly including:

• a tank sub-assembly, and
• a filter unit;
• the tank sub-assembly including a tank and an outlet unit;
• the tank defining an interior space for holding a liquid, and having a service aperture formed in an upper wall of the tank;
• the outlet unit being mounted at a lower wall of the tank having a liquid inlet and a liquid outlet, and configured to supply liquid from the tank, via the liquid inlet to the liquid outlet;
• the filter unit having a liquid permeable, tubular wall surrounding an interior space of the filter unit;
• the filter unit being arranged in a use position within the tank so that the interior space of the filter unit occupies a first portion of the interior space of the tank, and the tubular wall forms a barrier between the first portion of the interior space of the tank, and a second portion of the interior space of the tank exterior to the filter unit;
• the liquid inlet being arranged in fluid communication with the first portion of the interior space of the tank in the use position of the filter unit;
• the filter unit having a bottom opening the bottom opening being formed at a lower end of the filter unit when considered in its use position, and communicating with the interior space of the filter unit;
• the filter unit being releasably, sealingly engaged with the tank sub-assembly to sealingly close the bottom opening in the use position of the filter unit;
• the filter unit being installable and removable, independently of the outlet unit, via the service aperture.