Cartridge record

Unicel C-7418

Name: Unicel C-7418 filter cartridge
Brand: Unicel
SKU: C-7418

Also sold asPleatco PLB100Filbur FC-3540OEM 111791OEM M-7418

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 diameter	7-1/2" Source values unicel 7-1/2" pleatco 7-1/2"
Length	20-13/16" Source values unicel 20-13/16" pleatco 20-13/16"
Top cap	2-15/16" / open Source values unicel 2-15/16" / open pleatco 2 7/8
Bottom cap	2-15/16" / open Source values unicel 2-15/16" / open pleatco 2 7/8
Pleats	177 Source values unicel 177
Filter area	100 sq ft Source values unicel 100 pleatco 100
Media weight	4 oz Source values unicel 4 pleatco 4

Match the complete printed string. Similar-looking part numbers can describe different end caps or lengths.

Cross-reference equivalents
Brand	Part number	Verification
Unicel	C-7418	cross-checked against 2 sources
Pleatco	PLB100	single-source
Filbur	FC-3540	single-source
OEM	111791	single-source
OEM	M-7418	single-source

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

Filter and spa fitments
Brand	Model	OEM part	Source
Leisure Bay/Rec Warehouse	Leisure Bay 100	—	pleatco single-source
Rec Warehouse	—	111791	unicel single-source
Rec Warehouse	—	M-7418	unicel single-source

Records with the same outside diameter and a different length appear first, followed by the closest diameters. End-cap details still need to match.

7-1/2" × 21-7/8"

7-1/2" × 19-1/2"

7-1/2" × 17-3/4"

7-1/2" × 15-3/16"

7-1/2" × 14-13/16"

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