Radikult Custom Distribution plates (distro plates) and Flat style reservoirs are both components of custom PC water cooling loops.

Distro Plate are sometimes case-specific waterway channels made of cast acrylic that route coolant to specific locations to make it easier to assemble a custom water loop even for beginners or advance builders, and provide a distinct and innovative way to enhance your water loop's appearance. 
A must-have for any performance-oriented custom water cooling systems.
 
Distro plates can simplify the construction, planning, and maintenance of complex water cooled loops.  
Often they have multiple ports, including dedicated fill and drain ports, but may have less fluid capacity than tube style reservoirs.

Flat style reservoirs are generally easier to use than distro plates because they have fewer restrictions and less tubes going back and foward and have a decent amount of coolant capacity.
Some distro plates or flat reservoirs are designed specifically for certain cases, such as replacing the front glass panel. 
Most have the ability to add a D5 pump and some are LED ARGB lit.
All standard G1/4 threads ports. Duarable construction with quality materials, made in USA