Pleatco PMA45-2004-R = Unicel C-8341 = Filbur FC-1007
45 sq ft hot tub filter, 8-1/4" diameter × 6-7/8" long. Top: 4-1/16" open · Bottom: 4-1/16" open. Pleatco application: Master Spas EP (new style).
Interchangeable cartridges
- Unicel C-8341 confirmed by: Pleatco p.47 (Unicel to Pleatco cross reference) Unicel p.20 (Cartridges by series (dimensional listing))
- Filbur FC-1007 confirmed by: Pleatco p.48 (Filbur to Pleatco cross reference) Filbur p.33 (Reverse cross reference (Unicel to Filbur)) Filbur p.12 (Dimensional cartridge listing)
Check before you order
- Unicel C-8341 lists diameter 8" vs 8-1/4".
- Unicel C-8341 rates it 40 sq ft (vs 45 sq ft); filter area ratings differ by maker.
- Filbur FC-1007 lists length 7-3/8" vs 6-7/8"; measure before ordering.
- Filbur FC-1007 lists diameter 8" vs 8-1/4".
- Filbur FC-1007 rates it 40 sq ft (vs 45 sq ft); filter area ratings differ by maker.
Published dimensions, side by side
Each manufacturer measures a little differently. Compare these with your old cartridge.
| As published by | Pleatco PMA45-2004-R source | Unicel C-8341 source | Filbur FC-1007 source |
|---|---|---|---|
| Outside diameter | 8-1/4" | 8" | 8" |
| Length | 6-7/8" | 6-3/4" | 7-3/8" |
| Top end | 4-1/16" open | 4" / open w/ raised ring | 4" open |
| Bottom end | 4-1/16" open | 4" / open w/ raised ring | 4" open |
| Filter area | 45 sq ft | 40 sq ft | 40 sq ft |
| Pleats | not listed | 267 | not listed |
| Media weight | 3 oz/yd² | 3 oz/yd² | not listed |
Where to buy
Search any retailer for C-8341 or PMA45-2004-R or FC-1007. 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 |
|---|---|
X268330 | Pleatco p.35: OEM part # column |
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.
- Master Spas (models: Micro Filter) Unicel p.45
FAQ
What is the Unicel equivalent of Pleatco PMA45-2004-R?
The catalogs cross-reference Pleatco PMA45-2004-R to Unicel C-8341.
What is the Filbur equivalent of Pleatco PMA45-2004-R?
The catalogs list Filbur FC-1007.
What size is the PMA45-2004-R filter?
Pleatco lists PMA45-2004-R as 8-1/4" outside diameter by 6-7/8" long, top: 4-1/16" open, bottom: 4-1/16" open, 45 sq ft.
Which OEM part numbers does it replace?
Listed OEM numbers: X268330.
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.