Pleatco PSD65-2 = Unicel C-7466 = Filbur FC-2740
65 sq ft hot tub filter, 7-1/2" diameter × 14-3/4" long. Top: Castle · Bottom: 2-5/8" open. Pleatco application: Sundance 65; 2 5/8" I.D..
Interchangeable cartridges
- Unicel C-7466 confirmed by: Pleatco p.47 (Unicel to Pleatco cross reference) Unicel p.19 (Cartridges by series (dimensional listing))Unicel note: Note: 2-5/8” bottom id for 2” system. Unicel part replaces both 7-1/2" and 8" OD Sundance cartridges.
- Filbur FC-2740 confirmed by: Pleatco p.48 (Filbur to Pleatco cross reference) Filbur p.33 (Reverse cross reference (Unicel to Filbur)) Filbur p.11 (Dimensional cartridge listing)
Published dimensions, side by side
Each manufacturer measures a little differently. Compare these with your old cartridge.
| As published by | Pleatco PSD65-2 source | Unicel C-7466 source | Filbur FC-2740 source |
|---|---|---|---|
| Outside diameter | 7-1/2" | 7-1/2" | 7-1/2" |
| Length | 14-3/4" | 14-3/4" | 14-3/4" |
| Top end | Castle | / castle | Castle |
| Bottom end | 2-5/8" open | 2-5/8" / open | 2-5/8" open |
| Filter area | 65 sq ft | 65 sq ft | 65 sq ft |
| Pleats | not listed | 164 | not listed |
| Media weight | 3 oz/yd² | 3 oz/yd² | not listed |
Where to buy
Search any retailer for C-7466 or PSD65-2 or FC-2740. These are the same cartridge under different brand names.
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OEM part numbers this cartridge replaces
As printed in the cited aftermarket catalogs. Match the number on your old cartridge or in your spa manual exactly.
| OEM number | Listed in |
|---|---|
6540-481 | Pleatco p.34: OEM part # column Unicel p.59: OEM cross reference: Sundance Spas |
Hot tub brands that use it
From the spa-manufacturer cross reference in the Unicel 2026 Replacement Guide. A brand may use several sizes, so check your measurements.
- Sundance Spas (OEM 6540-481) Unicel p.59
FAQ
What is the Unicel equivalent of Pleatco PSD65-2?
The catalogs cross-reference Pleatco PSD65-2 to Unicel C-7466.
What is the Filbur equivalent of Pleatco PSD65-2?
The catalogs list Filbur FC-2740.
What size is the PSD65-2 filter?
Pleatco lists PSD65-2 as 7-1/2" outside diameter by 14-3/4" long, top: Castle, bottom: 2-5/8" open, 65 sq ft.
Which OEM part numbers does it replace?
Listed OEM numbers: 6540-481.
Sources: Filbur Product Catalog and Reference Guide (2024) · Filbur Product Catalog and Reference Guide (2024) · Pleatco 2023 Catalog & Cross Reference Guide (Pentair) · Pleatco 2023 Catalog & Cross Reference Guide (Pentair) · Pleatco 2023 Catalog & Cross Reference Guide (Pentair) · Unicel 2026 Replacement Guide. Last checked 2026-10-21.