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Automatic Chemical Feeders
IMPORTANT: THIS IS A KIT — NOT A SINGLE COMPONENT
When installing the replacement gauge adapter
Match the color of your existing seal before adding to cart
Pentair Control Board | ETi® 400 Heater | 475975 VLLS103S Automatic Chemical FeedersThe 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
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