PLF6541-397 / FC-2772
130 sq ft replacement filter cartridge • 8.375″ OD × 19″ long
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PLF6541-397 replacements on Amazon
The buttons below pull up Amazon results for each cross-reference part number. Same physical cartridge, different stickers, often different prices. Cross-shop and pick the cheapest option that has solid recent reviews.
Cross-Reference & Interchangeable Part Numbers
| Brand | Part Number | Type |
|---|---|---|
| Pleatco | PLF6541-397 | Primary |
| Filbur | FC-2772 | Equivalent |
| OEM | Sundance 6541-397 | Original Equipment |
| OEM | Sundance 6473-164 | Original Equipment |
| OEM | Sundance 6473-165 | Original Equipment |
Always verify dimensions and end-cap type before purchasing a replacement.
Compatible Hot Tubs & Spas
The PLF6541-397 (or any of its cross-references) fits these spa models. Cartridge sizing occasionally shifted between model years, so it's worth confirming against your owner's manual or the cartridge label.
| Brand | Model |
|---|---|
| Sundance | Cameo 880 |
| Sundance | Optima 880 |
| Sundance | Majesta 880 |
| Sundance | Aspen 880 |
| Sundance | Camden 880 |
| Sundance | Altamar 880 |
| Sundance | Marin 880 |
| Sundance | Chelsee 980 |
| Sundance | Monroe 980 |
Frequently Asked Questions
What are the dimensions of the PLF6541-397?
The PLF6541-397 is 8.375 inches in outer diameter, 19 inches long, with a open top and open bottom. Total filtration area is 130 square feet. Before ordering, pull your existing cartridge and measure it yourself, or check the label inside the housing. OD and length both have to match within about an eighth of an inch, and the end-cap style needs to match exactly so the cartridge seats properly when the lid closes.
What other part numbers are interchangeable with the PLF6541-397?
PLF6541-397 is the same physical cartridge as FC-2772, plus OEM versions like Sundance 6541-397, Sundance 6473-164, Sundance 6473-165. Same dimensions (8.375" × 19"), same open top, same open bottom. The Pleatco, Unicel, and Filbur boxes ship the same media inside, just with different stickers. The only thing to watch is the end-cap style: if a cross-reference has a slightly different cap design, it may not seat right in your housing.
How often should I replace the PLF6541-397?
130 sq ft is plenty of media for a hot tub, so the PLF6541-397 tends to last longer than the small-format spa cartridges. Two adults using the tub a couple times a week can usually get 18 to 24 months out of one before replacement. Monthly hose rinses and a quarterly overnight soak in filter cleaner stretch that out further. Replace it when the pleats won't rinse clean anymore or you start seeing pressure climb that soaking can't fix.
How do I clean the PLF6541-397?
The PLF6541-397 has open ends on both top and bottom, so water flows straight through. Pull the cartridge from the housing and hose it down. Hit the pleats from above at about a 45-degree angle so water rinses debris out instead of packing it deeper, and work top to bottom while rotating the cartridge. Skip the pressure washer. The high pressure tears or collapses pleats, and once that happens you've lost media that doesn't come back. Every few months (or at every water change, whichever comes first), do a deep clean: overnight soak in a hot tub filter cleaner, then a thorough rinse. If your cartridge has a closed end cap, let it dry before reinstalling so you don't trap moisture inside the cartridge core.
Which hot tubs and spas use the PLF6541-397?
The PLF6541-397 is compatible with: Sundance Cameo 880, Sundance Optima 880, Sundance Majesta 880, Sundance Aspen 880, Sundance Camden 880, Sundance Altamar 880, Sundance Marin 880, Sundance Chelsee 980, Sundance Monroe 980. Confirm against your owner's manual or the label inside the filter compartment, since some brands changed cartridge sizing between model years.
Dimensions
Specifications
| Outer Diameter | 8.375″ |
|---|---|
| Length | 19″ |
| Top Type | Open (no end cap) |
| Bottom Type | Open (no end cap) |
| Filtration Area | 130 sq ft |
| Primary Brand | Pleatco |
| Part Number | PLF6541-397 |