Pool Filter Lab

Cartridge record

Unicel 6CH-35

Also sold asPleatco PTL35W-PPleatco PTL35W-P4Filbur FC-0320OnCore OC-609A

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 diameter6"
Source values
  • unicel 6"
  • pleatco 6"
Length9-7/8"
Source values
  • unicel 9-7/8"
  • pleatco 9-13/16"
Top cap/ semi-circular handle
Source values
  • unicel / semi-circular handle
  • pleatco Handle
Bottom cap/ 1-1/2” male thread/MPT
Source values
  • unicel / 1-1/2” male thread/MPT
  • pleatco PAD AD
Pleats156
Source values
  • unicel 156
Filter area35 sq ft
Source values
  • unicel 35
  • pleatco 35
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
Unicel6CH-35cross-checked against 3 sources
PleatcoPTL35W-Psingle-source
PleatcoPTL35W-P4single-source
FilburFC-0320single-source
OnCoreOC-609Asingle-source

Known equipment fits

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

Filter and spa fitments
BrandModelOEM partSource
Arizona Pacific SpasDFA Spas;Arizona Pacific—pleatco single-source
Diamond Back Spas——unicel single-source
Unicel35 sq.ft. top load—unicel single-source

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.

C-6601

6" × 9-3/4"

cross-checked against 2 sources

6CH-402

6" × 9-1/2"

single-source

C-6330

6" × 10-1/2"

cross-checked against 2 sources

C-6430

6" × 10-1/2"

cross-checked against 2 sources

6CH-47

6" × 9-1/8"

cross-checked against 3 sources

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