Sundance 6473-164 Filter
Best inner core replacement for maintaining pristine hot tub water clarity.
This inner core is the unsung hero of your spa’s filtration system, handling the fine debris that larger filters miss. It’s a specialized, disposable component that demands regular replacement, but the trade-off is consistently pristine, crystal-clear water that makes every soak feel like a luxury.
$42.99
at
eBay
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Who it's for
- Sundance owners prioritizing guaranteed compatibility and peak performance
- Hot tub users seeking crystal-clear water quality
- Maintenance-conscious owners preferring long-lasting, reliable OEM components
Who should skip it
- Budget-focused buyers looking for cheaper aftermarket alternatives
- Shoppers needing immediate, local availability for quick repairs
- Owners wanting a low-maintenance, set-it-and-forget-it solution
Performance breakdown
Filtration Efficiency
Captures fine debris effectively as part of the dual-stage system.
Installation Simplicity
Direct-fit design makes swapping the inner core quick and effortless.
System Compatibility
Perfectly engineered for specific Sundance 850 and 880 series spas.
Maintenance Cycle
Four to six-month lifespan balances convenience with consistent water hygiene.
Build Integrity
Sturdy construction holds up well against constant water flow and pressure.
Water Clarity Impact
Noticeably improves spa water quality when paired with the outer cartridge.
Key Specs
Outer Diameter
5-11/16"
Length
18-3/4"
Filter Type
Cartridge
Compatibility
Sundance Spas 850/880 Series (2005+)
Disposable design
Height
18.74 in.
Diameter
5.63 in.
Compatible Spa Series
Sundance 880 Series (2009+)
Replaces Part Number
6473-164
Inner Core Only
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