Cartridge record

Unicel C-8325

Name: Unicel C-8325 filter cartridge
Brand: Unicel
SKU: C-8325

Also sold asPleatco PSD125UFilbur FC-2790OEM 6540-490

cross-checked against 2 sources

Verified specifications

The selected value is shown first. Expand any row to compare the source values retained by the dataset.

Cartridge specifications
Outside diameter	8-7/16" Source values unicel 8-7/16" pleatco 8-1/2"
Length	18" Source values unicel 18" pleatco 17-11/16"
Top cap	/ closed w/ 3-step edge Source values unicel / closed w/ 3-step edge pleatco Closed
Bottom cap	2-1/2" / open w/ beveled edge Source values unicel 2-1/2" / open w/ beveled edge pleatco 2 3/4
Pleats	201 Source values unicel 201
Filter area	125 sq ft Source values unicel 125 pleatco 125
Media weight	3 oz Source values unicel 3 pleatco 3

Match the complete printed string. Similar-looking part numbers can describe different end caps or lengths.

Cross-reference equivalents
Brand	Part number	Verification
Unicel	C-8325	cross-checked against 2 sources
Pleatco	PSD125U	single-source
Filbur	FC-2790	single-source
OEM	6540-490	single-source

Fitments are source-attributed. Confirm the housing model and cartridge measurements before ordering.

Filter and spa fitments
Brand	Model	OEM part	Source
Del Sol Hermosa	Universal Length	6540-490	unicel single-source
Sundance Spas	Sundance Horizontal Spa Cartridge	—	pleatco single-source

“Length recorded is measured to first step. Replacement for 18" to 18-1/2" overall length.”
Source: unicel

Records with the same outside diameter and a different length appear first, followed by the closest diameters. End-cap details still need to match.

8-7/16" × 18-1/8"

8-7/16" × 19"

8-7/16" × 19"

8-7/16" × 14"

8-1/2" × 17-3/8"

Outbound retailer searches are provided for convenience; Pool Filter Lab is not the seller.