Pool Filter Lab

Cartridge record

Unicel C-7491

Also sold asPleatco PFAB75Pleatco PFAB100SHFilbur FC-2190Filbur FC-2192OnCore OC-718BOEM 172877OEM 1722840OEM 1722841

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 diameter7"
Source values
  • unicel 7"
  • pleatco 7"
Length18-7/16"
Source values
  • unicel 18-7/16"
  • pleatco 24-7/16"
Top cap2-5/8" / open
Source values
  • unicel 2-5/8" / open
  • pleatco 2 5/8
Bottom cap2-5/8" / open
Source values
  • unicel 2-5/8" / open
  • pleatco 2 5/8
Pleats150
Source values
  • unicel 150
Filter area75 sq ft
Source values
  • unicel 75
  • pleatco 100
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-7491cross-checked against 3 sources
PleatcoPFAB75cross-checked against 2 sources
PleatcoPFAB100SHsingle-source
FilburFC-2190single-source
FilburFC-2192single-source
OnCoreOC-718Bsingle-source
OEM172877single-source
OEM1722840single-source
OEM1722841single-source
OEMR173316single-source

Known equipment fits

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

Filter and spa fitments
BrandModelOEM partSource
Pentair Pool Prod - Pac Fab ReplacementsSea Horse 300 (Stainless Steel Tank)1722840unicel single-source
Pentair Pool Prod - Pac Fab ReplacementsSea Horse FSH-300 (Fiberglass Tank)172877unicel single-source
Pentair Pool Products / PurexSeahorse 300 Stainless/Fiberglass Tank—pleatco single-source
Pentair Pool Products / PurexSeahorse 400 Stainless/Fiberglass Tank—pleatco single-source
Quantum CMSea Horse 300 (Stainless Steel Tank)R173316unicel single-source
Quantum CMSea Horse FSH-300 (Fiberglass Tank)—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.

7CH-90

7" × 19"

single-source

C-7481

7" × 19"

single-source

C-7485

7" × 19-1/8"

cross-checked against 2 sources

C-7306

7" × 17-11/16"

cross-checked against 2 sources

C-7403

7" × 17-5/8"

cross-checked against 2 sources

Find this cartridge

Outbound retailer searches are provided for convenience; Pool Filter Lab is not the seller.