Sundance® Spas Circuit Board 6500-528 (1983-1990) 624 System
Excluded Brands
The following brands are not eligible for LTI discount codes (including WELCOME). They go on sale only during manufacturer-authorized promotions:
- Gozney — pizza ovens and accessories
- OHCO — massage chairs
- Positive Posture — massage chairs and recliners
- Nomadix — outdoor lifestyle products (towels, blankets, accessories)
Excluded Products
The following individual products are also not eligible for discount codes:
- Any product that already has a price markdown — items on sale or clearance can't stack additional discounts on top
- FreshWater Salt System Replacement Cartridge (single)
- FreshWater Salt System Replacement Cartridge (3 Pack)
- Route Protection Insurance — third-party shipping protection, not eligible for our discounts
- Bullfrog A / R / X Series 10-00282 Filter Cartridges
- Bullfrog STIL Series 10-00281 Filter Cartridges
- FROG® @ease Sanitizer System for Bullfrog Spas
- FROG® @ease Replacement Cartridge for Bullfrog Spas (3 Pack)
- Bullfrog Simplicity™ Flat Filters for M Series (4 Pack)
- Filter Core Cage & Cap Assembly for Bullfrog Spas
- Fireplaces (gas, wood-burning, and fireplace inserts)
- Electric Fireplaces
- Gas Vent Pipe
- Pellet Vent Pipe
- Fireplace Fronts
This list can change. Manufacturers occasionally add or remove products from their MAP-protected lists. We update this page when they do, but the most accurate way to confirm whether a discount applies to a specific item is to add the item to your cart and try the code at checkout. If the code doesn't work, the item is excluded. If it does work, it's eligible.
Sundance® Spas Circuit Board 6500-528 (1983-1990) 624 System
Overview
Featuring durable construction and advanced technology, the Sundance® Spas Circuit Board 6500-528 provides precise control over essential spa functions, including temperature regulation, jet activation, and filtration cycles. Its compatibility with the 624 System ensures a perfect fit and easy installation, allowing you to upgrade your spa with confidence.
Restore your vintage Sundance® Spa to its former glory with the Sundance® Spas Circuit Board 6500-528. Enjoy peace of mind knowing that your spa is equipped with a high-quality circuit board that delivers reliable performance and longevity, allowing you to continue enjoying soothing hydrotherapy for years to come.
What's in the Box
- 1 x Sundance® Spas Circuit Board 6500-528 (1983-1990) 624 System
Compatibility
- 624 system from 1983-1990
Brand
Sundance® Spas



