Pentair ETi 400 Fan Control Board Replacement Kit (475978) NuWhirl Supports proper internal water collection

Supports proper internal water collection and cartridge alignment

and similar hardware

Installing the proper Pentair fitting can help restore directional flow control and improve the finished appearance of the return point

A part like this can improve both the seat feel and the visible finish in one straightforward step

This type of part is especially useful when the original cable has developed visible wear

Pentair ETi 400 Fan Control Board Replacement Kit (475978) NuWhirl Supports proper internal water collectionSmall components can make a major difference in equipment performance. Pentair ETi 400 Fan Control Board Replacement Kit (475978) replaces a defined wear part, service part, or connection point in the intended assembly. This replacement fan control board supports ETi 400 heater fan operation, helping coordinate airflow control required for proper combustion and heat exchange. It is useful when the existing component shows wear, damage, age related