Pool Filter Lab

Cartridge record

Unicel C-6900

Also sold asOEM 178656OEM DE250E

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 diameter6-1/4"
Source values
  • unicel 6-1/4"
Length32-3/4"
Source values
  • unicel 32-3/4"
Top cap3" / open w/ molded gasket
Source values
  • unicel 3" / open w/ molded gasket
Bottom cap3" / open w/ molded gasket
Source values
  • unicel 3" / open w/ molded gasket
Pleats42
Source values
  • unicel 42
Filter area25 sq ft
Source values
  • unicel 25
Media weight8 oz
Source values
  • unicel 8

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-6900single-source
OEM178656single-source
OEMDE250Esingle-source

Known equipment fits

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

Filter and spa fitments
BrandModelOEM partSource
Dynamic Series IV - DFM,DFMLQuad DE 100178656unicel single-source
Hayward Pool ProductsDEP100DE250Eunicel single-source
HaywardDEP100—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.

C-6980

6-1/4" × 26-3/4"

single-source

C-6970

6-1/4" × 25-1/2"

single-source

C-6960

6-1/4" × 20-3/4"

single-source

C-6950

6-1/4" × 19-5/8"

single-source

C-6610

6-1/4" × 8"

cross-checked against 2 sources

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

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