Pentair Control Board | ETi® 400 Heater | 475975 VLLS103S using a vacuum plate sized

using a vacuum plate sized for a different skimmer body will result in a poor seal and reduced suction at the vacuum head

PacFab and Compool diverter valves were produced across multiple size and configuration variants

A damaged or worn impeller results in reduced flow

Match the color of your existing seal before adding to cart

Pentair Control Board | ETi® 400 Heater | 475975 VLLS103S using a vacuum plate sizedThe Pentair Control Board (475975) is the OEM replacement control board for the Pentair ETi 400 Heater, restoring full electronic management of ignition sequencing, temperature regulation, and system fault monitoring. IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high voltage components without