Pool Filter Lab

Cartridge record

Unicel C-4618

Also sold asPleatco PC18Filbur FC-3740

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 diameter4-3/4"
Source values
  • unicel 4-3/4"
  • pleatco 4-3/4"
Length18"
Source values
  • unicel 18"
  • pleatco 18"
Top cap1-1/4" / open
Source values
  • unicel 1-1/4" / open
  • pleatco 2 9/16
Bottom cap2-7/16" / open
Source values
  • unicel 2-7/16" / open
  • pleatco 1 1/4
Pleats57
Source values
  • unicel 57
Filter area13 sq ft
Source values
  • unicel 13
  • pleatco 13
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-4618cross-checked against 2 sources
PleatcoPC18single-source
FilburFC-3740single-source

Known equipment fits

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

Filter and spa fitments
BrandModelOEM partSource
ColecoColeco F-225—pleatco single-source
ColecoDR-18—unicel single-source
ColecoF-225—unicel single-source
ColecoF-335—unicel single-source
ColecoF-345—unicel single-source
Lomart60-4314—unicel single-source
LomartColeco F-225—pleatco single-source

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-4616

4-3/4" × 16"

cross-checked against 2 sources

C-4611

4-3/4" × 11"

cross-checked against 2 sources

C-4307

4-3/4" × 8"

cross-checked against 2 sources

C-4309

4-3/4" × 8"

cross-checked against 2 sources

C-4608

4-3/4" × 8"

cross-checked against 2 sources

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