Cartridge record

Unicel 4CH-940

Name: Unicel 4CH-940 filter cartridge
Brand: Unicel
SKU: 4CH-940

Also sold asPleatco PDO-UF40Pleatco PSG40N-MFilbur FC-0177OEM 1561-13

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	4-5/8" Source values unicel 4-5/8" pleatco 4-15/16"
Length	15" Source values unicel 15" pleatco 14-13/16"
Top cap	/ semi-circular handle Source values unicel / semi-circular handle pleatco Handle
Bottom cap	/ 1-1/4" SAE thread Source values unicel / 1-1/4" SAE thread pleatco P2S
Pleats	176 Source values unicel 176
Filter area	40 sq ft Source values unicel 40 pleatco 40
Media weight	3 oz Source values unicel 3 pleatco 3

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

Cross-reference equivalents
Brand	Part number	Verification
Unicel	4CH-940	cross-checked against 2 sources
Pleatco	PDO-UF40	single-source
Pleatco	PSG40N-M	single-source
Filbur	FC-0177	single-source
OEM	1561-13	single-source

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

Filter and spa fitments
Brand	Model	OEM part	Source
Dimension One Spas	Dimension One	—	pleatco single-source
Dimension One Spas	—	1561-13	unicel single-source
Saratoga Spas	Saratoga Spas (MICROBAN)	—	pleatco single-source
Unicel	40 sq.ft. top load	—	unicel single-source