Pool Filter Lab

Cartridge record

Unicel C-5351

Also sold asPleatco PCST120Filbur FC-2976OnCore OC-530AOEM 817-0147

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 diameter5-5/16"
Source values
  • unicel 5-5/16"
  • pleatco 5-3/8"
Length30-1/8"
Source values
  • unicel 30-1/8"
  • pleatco 29-15/16"
Top cap2-1/8" / open
Source values
  • unicel 2-1/8" / open
  • pleatco 2 7/47
Bottom cap2-1/8" / open
Source values
  • unicel 2-1/8" / open
  • pleatco 2 3/16
Pleats222
Source values
  • unicel 222
Filter area135 sq ft
Source values
  • unicel 135
  • pleatco 150
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-5351cross-checked against 3 sources
PleatcoPCST120cross-checked against 2 sources
FilburFC-2976single-source
OnCoreOC-530Asingle-source
OEM817-0147single-source

Known equipment fits

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

Filter and spa fitments
BrandModelOEM partSource
Coast Spas (Canada)Coast Spas—pleatco single-source
Coast Spas (Canada)——unicel single-source
Waterway PlasticsCoast Spas—pleatco single-source
Waterway PlasticsTop load (in-line) 135 sq.ft.817-0147unicel single-source

Browse related equipment

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-5396

5-5/16" × 21-5/16"

cross-checked against 3 sources

C-5397

5-5/16" × 17-13/16"

cross-checked against 3 sources

C-5374

5-5/16" × 14-13/16"

cross-checked against 3 sources

C-5623

5-5/16" × 13-9/16"

single-source

C-5345

5-5/16" × 10-1/8"

cross-checked against 3 sources

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