PENTAIR Fan Control Board Replacement Kit || 475978 Style_PCC2000 No new reaming required

No new reaming required

This wall fitting is black and It was meant to be easy to locate as it was designed with a threaded base so that way it can be connected to the return line on your pool wall

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PENTAIR Fan Control Board Replacement Kit || 475978 Style_PCC2000 No new reaming requiredPENTAIR Fan Control Board Replacement Kit 475978 Fan control board for the ETI 400 heater by Pentair The air flow switches (AFS) sense the pressure differential between both of the air metering orifices. As soon as there is sufficient air flow, the AFS closes, completing the circuit to the Fan Control board. Fan Control Board for the following Pentair Heaters: ETI 400 Heaters 475978