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Island Spas Circuit Board 33-1801-08CB 2018-2024 MBP501UX
MBP501UX - Setup Configuration
MBP501UX - Wiring Diagram

Island Spas Circuit Board – 2018 thru 2024

Original price was: $445.99.Current price is: $419.99.

Island Spas Circuit Board – 2018 – Current  is the current replacement spa pack(Heater, Circuit Board and Plastic box) for all 220v Island Spas 2018 – Current.

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This Island Spas Circuit Board  is the current replacement circuit board for all 220v Island Spas 2018 thru 2024. 33-1801-08CB  MBP501UX

Daughter Board is Available here: Island Spas Daughter Board 2018 thru Current

The 120v St. Kitts Spa pack is available here: St. Kitts Spa Pack – 120v only

Complete Spa Pack(Heater, Circuit Board, Plastic mounting Box)

The manufacturer of the circuit board reserves the right to make production changes to the board. As demonstrated by the pictures and the boards having different transformers. 

THIS CIRCUIT BOARD DOES NOT FIT INSIDE THE PLASTIC MOUNTING BOX FOR ISLAND SPAS MANUFACTURED 2013-2017, you will need to buy the whole spa pack

We can look up your tub with the Serial Number and guarantee you buy the correct Spa Pack or Circuit Board the first time.


Own an Island Spa?

Looking for more parts, filters, or help identifying the right replacement? Visit our full Island Spas Owner Resource page to browse parts by category, model, and year.

Browse Island Spas Parts & Owner Resource Page

This board/pack covers the 2018 thru 2024 production range. Control systems are the one Island Spas part where guessing is expensive, so confirm it against the label on your existing pack rather than the model year alone — photograph the label and send it through the form on this page and we will confirm it before you order.

Both are possible. Island Spas moved from Balboa to Gecko with the 2025 update, but prior-generation “Classic” spas continued to sell through 2025 and into 2026. The model year does not settle it. The label on the pack does.

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