Pool Filter Lab

Cartridge record

Unicel C-2305

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 diameter2-3/4"
Source values
  • unicel 2-3/4"
Length5-1/8"
Source values
  • unicel 5-1/8"
Top cap1-1/16" / open
Source values
  • unicel 1-1/16" / open
Bottom cap1-1/16" / open
Source values
  • unicel 1-1/16" / open
Pleats76
Source values
  • unicel 76
Filter area3.5 sq ft
Source values
  • unicel 3.5
Media weight3 oz
Source values
  • unicel 3

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-2305single-source

Known equipment fits

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

Filter and spa fitments
BrandModelOEM partSource
Spa-In-A-Box——unicel 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-2304

2-3/4" × 6"

cross-checked against 2 sources

C-2306

2-3/4" × 9-3/4"

single-source

T-380

2-3/4" × 9-3/4"

cross-checked against 2 sources

T-380R

2-3/4" × 9-3/4"

single-source

C-2308

2-7/8" × 9-3/4"

single-source

This is a single-source record. Measure the cartridge before ordering.

Find this cartridge

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