Pool Filter Lab

Cartridge record

Unicel 4CH-934

Also sold asOEM 2540-387

single-source

Verified specifications

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

Cartridge specifications
Outside diameter4-5/8"
Source values
  • unicel 4-5/8"
Length12-1/2"
Source values
  • unicel 12-1/2"
Top cap/ molded cone handle
Source values
  • unicel / molded cone handle
Bottom cap/ 2" SAE thread
Source values
  • unicel / 2" SAE thread
Pleats186
Source values
  • unicel 186
Filter area35 sq ft
Source values
  • unicel 35
Media weight3 oz
Source values
  • unicel 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
Unicel4CH-934single-source
OEM2540-387single-source

Known equipment fits

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

Filter and spa fitments
BrandModelOEM partSource
Jacuzzi PremiumJ-400—unicel single-source
Jacuzzi Premium—2540-387unicel single-source
Unicel35 sq.ft. top load—unicel 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.

4CH-950

4-5/8" × 12"

cross-checked against 2 sources

4CH-30

4-5/8" × 11-7/8"

cross-checked against 3 sources

C-4312

4-5/8" × 11-7/8"

cross-checked against 3 sources

C-4320

4-5/8" × 11-7/8"

cross-checked against 3 sources

C-4325

4-5/8" × 11-7/8"

cross-checked against 3 sources

This is a single-source record. Measure the cartridge before ordering.

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