Pleatco PA120 = Unicel C-8412 = Filbur FC-1293

120 sq ft pool filter, 8-15/16" diameter × 23-1/4" long. Top: 4" open · Bottom: 4" open. Pleatco application: Hayward Star-Clear Plus C1200, Waterway Clearwater II 125, Waterway Pro-Clean 125, open w/molded gasket.

Interchangeable cartridges

Unicel C-8412 confirmed by: Pleatco p.47 (Unicel to Pleatco cross reference) Unicel p.22 (Cartridges by series (dimensional listing))
Filbur FC-1293 confirmed by: Pleatco p.48 (Filbur to Pleatco cross reference) Filbur p.33 (Reverse cross reference (Unicel to Filbur))

Published dimensions, side by side

Each manufacturer measures a little differently. Compare these with your old cartridge.

As published by	Pleatco PA120 source	Unicel C-8412 source
Outside diameter	8-15/16"	8-15/16"
Length	23-1/4"	23-5/16"
Top end	4" open	4" / open w/ molded gasket
Bottom end	4" open	4" / open w/ molded gasket
Filter area	120 sq ft	120 sq ft
Pleats	not listed	172
Media weight	4 oz/yd²	4 oz/yd²

Where to buy

Search any retailer for C-8412 or PA120 or FC-1293. These are the same cartridge under different brand names.

In The Swim (link coming soon)FiltersFast (link coming soon)Check price at Amazon

Some links may be affiliate links. See our disclosure.

OEM part numbers this cartridge replaces

As printed in the cited aftermarket catalogs. Match the number on your old cartridge or in your filter manual exactly.

OEM number	Listed in
`CX1200RE`	Pleatco p.35: OEM part # column Unicel p.38: OEM cross reference: Hayward Pool Products
`817-0125N`	Pleatco p.35: OEM part # column Unicel p.64: OEM cross reference: Waterway Plastics

Pool filters and equipment brands that use it

From the OEM cross reference in the Unicel 2026 Replacement Guide. A brand may use several sizes, so check your filter model and measurements.

Hayward Pool Products (models: Star-Clear Plus C1200; OEM CX1200RE) Unicel p.38
Waterway Plastics (models: Clearwater II 125, Pro Clean 125; OEM 817-0125N) Unicel p.64

FAQ

What is the Unicel equivalent of Pleatco PA120?

The catalogs cross-reference Pleatco PA120 to Unicel C-8412.

What is the Filbur equivalent of Pleatco PA120?

The catalogs list Filbur FC-1293.

What size is the PA120 filter?

Pleatco lists PA120 as 8-15/16" outside diameter by 23-1/4" long, top: 4" open, bottom: 4" open, 120 sq ft.

Which OEM part numbers does it replace?

Listed OEM numbers: CX1200RE, 817-0125N.

Sources: 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 2026-11-03.