850 series with ;Emprom Rev.1.30B/1.30D with IsoPure
Note: 6600-018, 6600-017 and 6600-023 are identical board with diffrent Emprom revisions.
Used in Models:
Please note that this circuit board or any other circuit board cannot be returned if it is installed. If you are unsure this is the circuit board you need, please email us the information off of your circuit board and if possible the model and year of your spa.We may ask for additional information, before confirming the circuit board needed, if we confirm the wrong board and it is installed then we will allow it to be returned due to our error. firstname.lastname@example.org