Pool Filter Lab

Cartridge record

Unicel 8CH-502

Also sold asOEM PVT 50WH

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 diameter8-1/2"
Source values
  • unicel 8-1/2"
Length7-1/4"
Source values
  • unicel 7-1/4"
Top cap/ v-groove semi-circular handle
Source values
  • unicel / v-groove semi-circular handle
Bottom cap/ 2” male thread/MPT
Source values
  • unicel / 2” male thread/MPT
Pleats258
Source values
  • unicel 258
Filter area50 sq ft
Source values
  • unicel 50
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
Unicel8CH-502single-source
OEMPVT 50WHsingle-source

Known equipment fits

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

Filter and spa fitments
BrandModelOEM partSource
Unicel50 sq.ft. top load/front access—unicel single-source
Vita Spas—PVT 50WHunicel single-source

Browse related equipment

Source notes

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-8465

8-1/2" × 10-1/2"

cross-checked against 3 sources

C-8340

8-1/2" × 10-3/4"

cross-checked against 2 sources

C-8310

8-1/2" × 15-3/16"

cross-checked against 2 sources

C-800

8-1/2" × 17-3/8"

single-source

C-8600

8-1/2" × 17-3/8"

cross-checked against 3 sources

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

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