6541-397 Pool Spa Filter Compatible with 2009-2023 Sundance 880

In this review the REEPLAR 6541-397 replacement filter is evaluated for owners of Sundance 880 and 980 series spas from 2009 through 2023. The bottom line: this pair of inner and outer cartridges is for anyone who needs a direct, long 19in replacement that matches the factory 6473-165 outer and 6473-164 inner filters and delivers straightforward filtration performance and value. The most convincing reason to buy is the exact fit for the specified years and models, avoiding trimming or awkward adapters when you confirm your spa year and measure beforehand.

Key Features

• Compatibility: Designed specifically for 2009-2023 Sundance 880 and 980 spas, so it fits Optima, Maxxus, Aspen, Marin and several Cameo series without modification.
• Direct replacement: Replaces factory parts 6473-165 (outer) and 6473-164 (inner) and common equivalents such as Filbur FC-2772, making parts ordering simple.
• Large filtration area: The combined cartridges provide about 80 sq. ft. of filtration area to trap debris effectively in well-maintained hot tubs.
• Outer filter fabric: The 6473-165 outer uses trilobal, star-shaped fibers that improve debris capture while remaining easy to rinse for routine maintenance.
• Clear dimensional match: Outer measures 19in length with specified slip top and open bottom dimensions, which helps users verify fit before purchase.

Who It's For

Owners of Sundance 880 or 980 spas built between 2009 and 2023 who need a like-for-like replacement will benefit most from this filter set; the 19in outer cartridge and matching inner have the correct form factor for the listed models so installation is usually straightforward. Pool and spa owners who prefer to clean and reuse the outer cartridge will appreciate the rinseable trilobal fabric on the outer filter.

Conversely, buyers with Sundance 880/980 spas manufactured after 2024 should look elsewhere because those models use a shorter 15.5in cartridge. Also, anyone seeking a fully washable inner cartridge should note the inner 6473-164 is listed as non-rinsable and is intended to be replaced rather than repeatedly cleaned.

Pros & Cons

Pros

• Accurate fit for 2009-2023 Sundance 880/980 models, avoiding fitment issues.
• Outer filter uses trilobal star-shaped fibers that clean out well and trap debris effectively.
• Replaces several cross-reference part numbers, simplifying sourcing and compatibility checks.

Cons

• Not compatible with 2024+ Sundance 880/980 spas, so buyers must verify year and measure before purchasing.
• Inner filter is non-rinsable, so it will need periodic replacement rather than repeated cleaning.

Specifications

Model	6541-397 (outer 6473-165 and inner 6473-164)
Compatible spa years	2009-2023 (880 and 980 series)
Outer length	19in
Filtration area	80 sq. ft.
Outer fabric	Trilobal star-shaped fibers, rinseable
Inner filter	Non-rinsable inner cartridge
Cross references	Filbur FC-2772/FC-2771/FC-2769, 6540-507, Baleen AK-6541397

Our Verdict

The 6541-397 replacement is a practical, value-oriented choice for owners of 2009-2023 Sundance 880 and 980 spas who need a correct 19in outer and matching inner cartridge. It delivers the key benefits of an accurate fit, a rinseable outer with improved fiber design, and broad cross-compatibility, but buyers must confirm spa year and accept that the inner filter requires periodic replacement.

Frequently Asked Questions

Will this fit my Sundance 880 spa?
If your Sundance 880 is from 2009 through 2023 this 19in set is made as a direct replacement; verify your spa year and measure the cartridge before ordering.

Is the outer filter washable?
Yes, the outer 6473-165 uses a trilobal, star-shaped fabric that is designed to be rinsed for routine maintenance.

Can the inner cartridge be rinsed and reused?
No, the 6473-164 inner filter is listed as non-rinsable and is intended to be replaced when it reaches the end of its usable life.