Cartridge record

Unicel C-8405

Also sold asOEM 178571OEM R173582

single-source

Verified specifications

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

Cartridge specifications
Outside diameter	8-7/8" Source values unicel 8-7/8"
Length	39" Source values unicel 39"
Top cap	4" / open Source values unicel 4" / open
Bottom cap	4" / open Source values unicel 4" / open
Pleats	139 Source values unicel 139
Filter area	180 sq ft Source values unicel 180
Media weight	4 oz Source values unicel 4

Equivalent part numbers

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-8405	single-source
OEM	178571	single-source
OEM	R173582	single-source

Known equipment fits

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

Filter and spa fitments
Brand	Model	OEM part	Source
Pentair Pool Prod - Purex Replacements	DM-180 Filter	178571	unicel single-source
Pentair Pool Prod	DM-180 Filter	R173582	unicel single-source

Source notes

“Product has white end caps.”
Source: unicel
“This product has no center core and white end caps.”
Source: unicel

Dimension neighbors

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

C-8401

8-7/8" × 19-1/2"

cross-checked against 2 sources

C-8402

8-7/8" × 19-1/2"

cross-checked against 2 sources

C-8403

8-7/8" × 19-1/2"

cross-checked against 2 sources

C-8418

8-15/16" × 33-1/8"

cross-checked against 2 sources

C-8425

8-15/16" × 33-1/8"

cross-checked against 2 sources

This is a single-source record. Measure the cartridge before ordering.

Find this cartridge

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