Pool Filter Lab

Cartridge record

Unicel C-4312

Also sold asPleatco PA12Filbur FC-1210OnCore OC-411DOEM C120-REOEM C120RE

cross-checked against 3 sourcesDiscontinuedReplacement: C-4325

Verified specifications

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

Cartridge specifications
Outside diameter4-5/8"
Source values
  • unicel 4-5/8"
  • pleatco 4-5/8"
Length11-7/8"
Source values
  • unicel 11-7/8"
  • pleatco 11-7/8"
Top cap2-1/16" / open
Source values
  • unicel 2-1/16" / open
  • pleatco 2 1/16
Bottom cap2-1/16" / open
Source values
  • unicel 2-1/16" / open
  • pleatco 2 1/16
Pleats66
Source values
  • unicel 66
Filter area12 sq ft
Source values
  • unicel 12
  • pleatco 12
Media weight3 oz
Source values
  • unicel 3
  • pleatco 3

Equivalent part numbers

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

Cross-reference equivalents
BrandPart numberVerification
UnicelC-4312cross-checked against 3 sources
PleatcoPA12cross-checked against 2 sources
FilburFC-1210single-source
OnCoreOC-411Dsingle-source
OEMC120-REsingle-source
OEMC120REsingle-source

Known equipment fits

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

Filter and spa fitments
BrandModelOEM partSource
Hayward Pool ProductsMicro Star Clear—pleatco single-source
Hayward Pool ProductsMicroStar-Clear (in-line)C120REunicel single-source
HaywardC120RE—unicel single-source

Browse related equipment

Source notes

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.

4CH-950

4-5/8" × 12"

cross-checked against 2 sources

C-4327

4-5/8" × 11-5/8"

single-source

C-4327AM

4-5/8" × 11-5/8"

single-source

C-4403

4-5/8" × 11-5/8"

cross-checked against 2 sources

4CH-934

4-5/8" × 12-1/2"

single-source

Find this cartridge

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