Pentair · Filters

Pentair System:2 PLM modular media parts

OEM part numbers for the Pentair System:2 PLM modular media cartridge filters (PLM100 to PLM300), from Pentair's 2021 filter parts catalog.

Upfront pricing · many common repairs and installations have a set price, given before any work starts

Choose a part from the list below to see its part number and details.

Parts list

No diagram for this model yet. Every part number below is checked against Pentair’s own documentation. Choose a part from the list to see its details.

Pick a part

Tap any number on the drawing to see its OEM part number, which models it fits and what commonly goes wrong with it.

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Parts list

Ref.PartPart no.
127001-0054S
2U9-359
2A25010-0200
2B24206-0103S
3Varies by model
4a27001-0061S
4b27001-0060S
527001-0009S
627001-0051
7A27001-0022
7B24900-0510
835505-1424
9U78-820P
1015060-0000T
1124800-0121
12a27002-0100S
12b27002-0125S
12c27002-0150S
12d27002-0175S
12e27002-0200S
12f27002-0300S
1327001-0130S
n133455-1050

About the Pentair System:2 PLM modular media

Pentair's 2021 parts catalog lists the System:2 PLM series modular media filters PLM100, PLM125, PLM150, PLM175, PLM200 and PLM300. The filter module is specific to each model and the PLM300 has its own tank upper half; the Posi-Lok ring, cord-ring, lower half, air release parts and fittings are shared.

Pentair advises that filters manufactured before 2005 should replace the tank top and bottom together.

Repair or replace?

Most of these parts are replaceable on their own, which is why it matters which one has actually failed before anything is ordered. Whether a repair or a new pump makes more sense depends on what failed and the condition of the rest of the pump. Pool Filter Repair & Installation · Pool Equipment Replacement & Upgrades

Already know which part you need? Many common repairs and installations have a set price, given before any work starts. Not sure what’s wrong? The Pool Problem Finder starts from what your equipment is doing.

Set prices for common jobs

  • Filter installation$225 labor
  • Filter cleaning$140 labor

Labor prices don’t include the pump, filter or parts, which are quoted with the job. You hear the full price before any work starts.

Source

Part numbers and reference numbers: Pentair, Pool Filter Replacement Parts Catalog, accessed 2026-10-22. Pentair and System:2 PLM modular media are trademarks of their owner and are used here only to identify the equipment. Mobile Pool Repair is not affiliated with or endorsed by Pentair.

Pentair System:2 PLM modular media trouble?

Pool Filter Repair & Installation at your equipment pad in Queen Creek, Gilbert and Chandler and across the East Valley. Call, or text a photo of the label and the pad.

(602) 718-8472Text usNot sure what’s wrong?