Pool Filter Lab

Cartridge record

Unicel C-4449

Also sold asPleatco PSI45-OFilbur FC-2640OnCore OC-517D

cross-checked against 3 sources

Verified specifications

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

Cartridge specifications
Outside diameter4-15/16"
Source values
  • unicel 4-15/16"
  • pleatco 5"
Length17-3/4"
Source values
  • unicel 17-3/4"
  • pleatco 17-5/8"
Top cap2-1/8" / open
Source values
  • unicel 2-1/8" / open
  • pleatco 2 1/8
Bottom cap2-1/8" / open
Source values
  • unicel 2-1/8" / open
  • pleatco 2 1/8
Pleats143
Source values
  • unicel 143
Filter area45 sq ft
Source values
  • unicel 45
  • pleatco 45
Media weight4 oz
Source values
  • unicel 4
  • 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-4449cross-checked against 3 sources
PleatcoPSI45-Ocross-checked against 2 sources
FilburFC-2640single-source
OnCoreOC-517Dsingle-source

Known equipment fits

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

Filter and spa fitments
BrandModelOEM partSource
Pageant SpasSantana 45—pleatco single-source
Pageant Spas——unicel single-source
Santana SpasSantana 45—pleatco single-source
Santanna——unicel single-source

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-4349

4-15/16" × 17-3/8"

cross-checked against 3 sources

C-4975

4-15/16" × 20-1/8"

cross-checked against 3 sources

C-4301

4-15/16" × 14-7/8"

cross-checked against 2 sources

C-4305

4-15/16" × 14-7/8"

cross-checked against 3 sources

C-4345

4-15/16" × 14-7/8"

cross-checked against 2 sources

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