Cartridge record

Unicel 5CH-35

Name: Unicel 5CH-35 filter cartridge
Brand: Unicel
SKU: 5CH-35

Also sold asPleatco PAS35PPleatco PMAX50Pleatco PMAX50P4Filbur FC-0300OnCore OC-508BOEM 104309

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 diameter	5-5/8" Source values unicel 5-5/8" pleatco 5-3/4"
Length	8" Source values unicel 8" pleatco 8-7/16"
Top cap	/ semi-circular handle Source values unicel / semi-circular handle pleatco Handle
Bottom cap	/ 1-1/2” male thread/MPT Source values unicel / 1-1/2” male thread/MPT pleatco P4
Pleats	203 Source values unicel 203
Filter area	35 sq ft Source values unicel 35 pleatco 35
Media weight	3 oz Source values unicel 3 pleatco 11

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

Cross-reference equivalents
Brand	Part number	Verification
Unicel	5CH-35	cross-checked against 3 sources
Pleatco	PAS35P	single-source
Pleatco	PMAX50	single-source
Pleatco	PMAX50P4	cross-checked against 2 sources
Filbur	FC-0300	single-source
OnCore	OC-508B	single-source
OEM	104309	single-source

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

Filter and spa fitments
Brand	Model	OEM part	Source
Elite Spas By Maax	Maax Spas of Canada	—	pleatco single-source
Elite Spas by Maax	—	—	unicel single-source
Maax Spas (Canada) / Coleman Spas	Maax Spas of Canada	—	pleatco single-source
Maax Spas of AZ	Elite Spas	104309	unicel single-source
Unicel	35 sq.ft. top load	—	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.

5-5/8" × 6"

5-11/16" × 10-3/8"

5-11/16" × 10-3/8"

5-3/4" × 10"

5-1/2" × 11-7/8"

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