Reductant tank assembly with multiple connection tank header

A header assembly for an aftertreatment system, the header assembly comprising:

• a header configured to be directly attached to a wall of a reductant tank, the header comprising:
• a suction port extending through the header from a first surface of the header on a reductant tank side to a second surface of the header opposite the first surface, and
• a return port extending through the header from the first surface of the header to the second surface of the header;
• a first splitting device configured to receive a first flow of reductant from the suction port of the header and to split the first flow into a first inlet flow and a second inlet flow;
• a second splitting device configured to receive a first outlet flow and a second outlet flow and to provide a second flow to the return port of the header;
• a first inlet line coupled to the first splitting device and configured to direct the first inlet flow from the first splitting device to a first dosing module;
• a second inlet line coupled to the first splitting device and configured to direct the second inlet flow from the first splitting device to a second dosing module;
• a first outlet line coupled to the second splitting device and configured to direct the first outlet flow from the first dosing module to the second splitting device;
• and
• a second outlet line coupled to the second splitting device and configured to direct the second outlet flow from the second dosing module to the second splitting device.