Pool Filter Lab

Cartridge record

Unicel C-4604

Also sold asPleatco PHP18Filbur FC-3758OEM 1370031

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 diameter4-1/4"
Source values
  • unicel 4-1/4"
  • pleatco 4-1/4"
Length17-7/8"
Source values
  • unicel 17-7/8"
  • pleatco 18"
Top cap1-15/16" / open
Source values
  • unicel 1-15/16" / open
  • pleatco 2
Bottom cap1-15/16" / open
Source values
  • unicel 1-15/16" / open
  • pleatco 2
Pleats65
Source values
  • unicel 65
Filter area15 sq ft
Source values
  • unicel 15
  • pleatco 16
Media weight4 oz
Source values
  • unicel 4
  • pleatco 4

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-4604cross-checked against 2 sources
PleatcoPHP18single-source
FilburFC-3758single-source
OEM1370031single-source

Known equipment fits

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

Filter and spa fitments
BrandModelOEM partSource
Jacuzzi Leisure Prod. (Canada)C-22 cartridge filter1370031unicel single-source
Jacuzzi Leisure Products / Atlantic PoolsHaugh’s C-22—pleatco 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-4329

4-1/4" × 12"

cross-checked against 2 sources

C-4351

4-1/4" × 23-3/4"

cross-checked against 2 sources

C-4360

4-1/4" × 23-3/4"

cross-checked against 2 sources

C-4603

4-1/4" × 10-7/8"

cross-checked against 2 sources

C-4304

4-1/4" × 8"

cross-checked against 2 sources

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