Pool Filter Lab

Cartridge record

Unicel C-6430

Also sold asPleatco PWK30Filbur FC-3915OEM 31489

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 diameter6"
Source values
  • unicel 6"
  • pleatco 5-7/8"
Length10-1/2"
Source values
  • unicel 10-1/2"
  • pleatco 10-1/2"
Top cap1-15/16" / open
Source values
  • unicel 1-15/16" / open
  • pleatco 1 15/16
Bottom cap1-15/16" / open
Source values
  • unicel 1-15/16" / open
  • pleatco 1 15/16
Pleats124
Source values
  • unicel 124
Filter area30 sq ft
Source values
  • unicel 30
  • pleatco 30
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-6430cross-checked against 2 sources
PleatcoPWK30single-source
FilburFC-3915single-source
OEM31489single-source

Known equipment fits

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

Filter and spa fitments
BrandModelOEM partSource
Hot Springs Spas—31489unicel single-source
Hot Springs Spas——unicel single-source
Watkins / Hot Springs SpasWatkins Hot Spring Spas—pleatco 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.

6CH-35

6" × 9-7/8"

cross-checked against 3 sources

C-6601

6" × 9-3/4"

cross-checked against 2 sources

6CH-402

6" × 9-1/2"

single-source

6CH-47

6" × 9-1/8"

cross-checked against 3 sources

C-6433

6" × 9"

cross-checked against 2 sources

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