Welcome to the #1 Online Parts Store!
Welcome to the #2 Online Parts Store!
Welcome to the #3 Online Parts Store!
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Don't let a fried circuit board keep your Dimension One® spa offline. Western Tub and Pool stocks a wide range of genuine and OEM-compatible D1® circuit boards, sourced and cross-referenced to get the exact match for your model, year, and control system. Shop and order at Western Tub and Pool — call 1-855-248-0777 or email fixmytub@gmail.com for expert help finding your part. Dimension One® Spas has been building premium hot tubs and swim spas out of Carlsbad, California since 1977, earning over 30 patents and CE, UL, GS, and ISO 9001 certifications along the way. Whether you own a Bay Collection spa, a Reflections model, or an @Home budget spa, your circuit board is the brain of the entire system — controlling your heater, pumps, jets, and lighting. Here's what sets our inventory apart: Below is a breakdown of Dimension One® circuit boards and the spa models they support. Use your existing part number (usually printed on the board itself) to find an exact match, or contact us with your spa's model and serial number. Not sure which collection your spa belongs to? Here's the full lineup: Bay Collection (Luxury): Dupree Bay, Lotus Bay, Amore Bay, Sarena Bay Reflections Collection (Mid-Range): Triad, Seville, Aurora, Californian, Diplomat, Chairman, Nautilus, Nautique @Home Collection (Value): Serenade, Journey, Arena, Dream, Wayfarer, Latitude, Breeze, Sojourn, Meridian AquaFit Swim Spas: AquaFit Sport, AquaFit Play, AquaFit Pro, AquaFit Plus Legacy Models: Little Dipper, Legend 1500, Luxxor, Chairman II, Diplomat, Sedona, Madrid, Taos, Tiburon, Santiago, Platinum Spas Circuit board dimensions and packaging weights vary by model and control system generation. Because exact specs differ between board revisions, we recommend confirming measurements against your existing board or providing us with your part number, spa make, model, and serial number — we'll verify fit and shipping weight before you order. How do I find the right circuit board for my Dimension One® spa? What's the difference between the Gecko MSPA-MP-D17 and D17-NON LFX boards? My part number is discontinued. What do I do? Do you carry related parts, like control panels and spa packs? Why do some part numbers have a letter suffix? Western Tub and Pool operates as an international e-retailer, which means the same part may be stocked in warehouses across different regions. To keep things clear, we've added regional suffixes to our part numbers: Some products may be duplicated across regions under these different suffixes, which can affect shipping times and costs. Always check your part number's suffix, or let us know your location so we can direct you to the closest available stock. Can't locate your exact circuit board or part number? Send us an email at fixmytub@gmail.com with: Our team specializes in sourcing hard-to-find hot tub and spa parts, even for discontinued models. Shop and order at Western Tub and Pool, or call 1-855-248-0777 — we're here to get your spa running again.
Shop by Brand
Dimension One - D1- Circuit Board
Genuine Dimension One® Circuit Boards — Get Your Spa Back Up and Running
Why Choose Our Dimension One® Circuit Boards
Circuit Boards by Model & Part Number
Little Dipper Series
SL Model Series
Legend & Platinum Series
D1S / D1P Series (1997-1999)
Gecko MSPA-MP Control Systems
Spa Builders Systems
Dimension One® Spa Model Reference Guide
Dimensions & Weight
Frequently Asked Questions
Locate the part number printed directly on your existing board. If it's damaged or illegible, send us a photo along with your spa's make, model, and serial number, and we'll match it for you.
The D17 board supports Liquid FX lighting systems used in Bay Collection spas, while the D17-NON LFX is designed for Reflections Series spas without Liquid FX. Both support M-Drive and are backwards compatible with earlier boards.
Some older boards, like the 01710-80 (D1P, 1997), have been discontinued by the manufacturer. Call us at 1-855-248-0777 or email fixmytub@gmail.com and we'll help source a compatible replacement.
Yes. Many circuit boards work alongside topside control panels, spa packs, and M-Drive upper control panels. Let us know your board part number and we'll confirm which associated parts you may also need.
As an international e-retailer, we source inventory from multiple regional warehouses. See our shipping note below for details.International Shipping & Part Suffixes
Hard-to-Find Part? We'll Track It Down.