Pentair S7M120 Inner/Outer Cartridge Pack | System 3 | 170145

Description

The Pentair S7M120 Inner/Outer Cartridge Pack (170145) is the OEM replacement cartridge set for the Pentair System 3 S7M120 Modular Media Filter.

IMPORTANT: SOLD AS A MATCHED PACK
This listing is a complete pack containing both the inner and outer cartridge elements for the S7M120 tank. Both pieces are required to restore full filtration — install them as a matched set, not individually.

This pack includes both the inner and outer cartridge elements needed to restore full filtration for the S7M120 modular media filter, replacing them together as a matched pair.

Separate Cartridges

If you need a partial service, here are the separate cartridges:

• Large Cartridge: 25022-0201S
• Small Cartridge: 25021-0200S

Specifications

Fits Into

Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment’s manual or on the original part itself before ordering.

Poolaroo Pro Tip

Rinse both the inner and outer cartridges thoroughly at each cleaning to help maintain flow and extend the filter cycle.