Cartridge record

Unicel C-5623

Name: Unicel C-5623 filter cartridge
Brand: Unicel
SKU: C-5623

Also sold asOEM 174821

single-source

Verified specifications

The selected value is shown first. Expand any row to compare the source values retained by the dataset.

Cartridge specifications
Outside diameter	5-5/16" Source values unicel 5-5/16"
Length	13-9/16" Source values unicel 13-9/16"
Top cap	2" / open Source values unicel 2" / open
Bottom cap	2" / open Source values unicel 2" / open
Pleats	84 Source values unicel 84
Filter area	23 sq ft Source values unicel 23
Media weight	4 oz Source values unicel 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-5623	single-source
OEM	174821	single-source

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

Filter and spa fitments
Brand	Model	OEM part	Source
Pentair Pool Prod - Pac Fab Replacements	Mytilus MY-30/50	174821	unicel single-source

“Two 23 sq.ft. cartridges required. The C-5623 has been discontinued by Unicel.”
Source: unicel

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

5-5/16" × 14-13/16"

5-5/16" × 10-1/8"

5-5/16" × 10"

5-5/16" × 17-13/16"

5-5/16" × 9"

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