Pleatco PAS35-F2M = Unicel 7CH-322 = Filbur FC-0419 = Filbur FC-0420
35 sq ft hot tub filter, 7-1/8" diameter × 7-9/16" long. Top: Handle · Bottom: 2" MPT. Pleatco application: Artesian Top Load Spa (Coleman).
Interchangeable cartridges
- Unicel 7CH-322 confirmed by: Pleatco p.47 (Unicel to Pleatco cross reference) Unicel p.14 (Cartridges by series (dimensional listing))
- Filbur FC-0419 confirmed by: Pleatco p.48 (Filbur to Pleatco cross reference) Filbur p.11 (Dimensional cartridge listing)
- Filbur FC-0420 confirmed by: Filbur p.34 (Reverse cross reference (Unicel to Filbur)) Filbur p.11 (Dimensional cartridge listing)
Check before you order
- Unicel 7CH-322 lists length 8" vs 7-9/16"; measure before ordering.
- Unicel 7CH-322 rates it 32 sq ft (vs 35 sq ft); filter area ratings differ by maker.
- Filbur FC-0420 lists length 8" vs 7-9/16"; measure before ordering.
- Filbur FC-0420 rates it 32 sq ft (vs 35 sq ft); filter area ratings differ by maker.
- Listed by Filbur's reverse cross reference only; Pleatco maps this cartridge to a different Filbur number.
Published dimensions, side by side
Each manufacturer measures a little differently. Compare these with your old cartridge.
| As published by | Pleatco PAS35-F2M source | Unicel 7CH-322 source | Filbur FC-0419 source |
|---|---|---|---|
| Outside diameter | 7-1/8" | 7" | 7" |
| Length | 7-9/16" | 8" | 7-9/16" |
| Top end | Handle | / semi-circular handle | Handle |
| Bottom end | 2" MPT | / 2" male thread/MPT | 2" MPT |
| Filter area | 35 sq ft | 32 sq ft | 35 sq ft |
| Pleats | not listed | 175 | not listed |
| Media weight | 3 oz/yd² | 3 oz/yd² | not listed |
Where to buy
Search any retailer for 7CH-322 or PAS35-F2M or FC-0419 or FC-0420. 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.
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.
- Artesian Spas Unicel p.29
- Coleman Spas (OEM 100520, 3301-2109) Unicel p.32
- Master Spas Unicel p.45
FAQ
What is the Unicel equivalent of Pleatco PAS35-F2M?
The catalogs cross-reference Pleatco PAS35-F2M to Unicel 7CH-322.
What is the Filbur equivalent of Pleatco PAS35-F2M?
The catalogs list Filbur FC-0419, FC-0420.
What size is the PAS35-F2M filter?
Pleatco lists PAS35-F2M as 7-1/8" outside diameter by 7-9/16" long, top: Handle, bottom: 2" MPT, 35 sq ft.
Which OEM part numbers does it replace?
Listed OEM numbers: 100520, 3301-2109.
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.