Pentair System 3 Modular Media Filter S7M400 Replacement Cartridge Pack | 170146
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Pentair’s System 3 modular media filters use balanced-flow hydraulics for consistent performance, and while tanks carry warranty coverage, cartridges like this pack are considered consumables and are not typically covered.
Q: How often should I replace these cartridges? A: Inspect annually; replace when media shows signs of wear, tearing, or when backwash doesn’t restore flow. Q: Can I use just one cartridge instead of full pack? A: Using only one module may unbalance flow and reduce efficiency. It’s best to replace both together.
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Pentair System 3 Modular Media Filter S7M400 Replacement Cartridge ...
Description
Description
Pentair System 3 Modular Media Filter S7M400 Replacement Cartridge Pack | 170146
Replacement inner & outer cartridges for Pentair System 3 S7M400 – 136 sq ft + 264 sq ft modules.
Features
- Includes one inner 136 sq ft cartridge and one outer 264 sq ft cartridge
- Direct OEM compatibility with the S7M400 modular media filter
- Robust media construction resists degradation over repeated use
- Maintains balanced flow dynamics to protect pump efficiency
- Quick swap-in replacement with no system modifications
Description
This replacement cartridge pack restores full filtration for the Pentair System 3 S7M400 modular media filter. It contains both the inner (136 sq ft) and outer (264 sq ft) filter modules used in the original configuration. The media is designed to endure frequent cleaning cycles while delivering stable hydraulic performance. With this pack, you return the system to its intended efficiency, minimizing pressure rise and extending pump life.
Pro Tip
Rinse cartridges with a gentle spray before inserting to clear any packing dust. Pair this replacement with a quality cartridge cleaning solution to extend media life.
Related Parts
Installation Tips
Always turn off pump power and relieve system pressure before servicing. Confirm orientation and seating of inner and outer cartridges to avoid bypass or uneven flow.
Specifications
Specifications
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SKU
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Product Type
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Size/Connection
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Materials
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Dimensions25.25 in, 8.5 in, 18.5 in, 16.25 in
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Warranty
Product Warranty
Product Warranty
We want you to have quick and easy access to warranty information for all the brands we carry. Please click on the links below to view each manufacturer’s warranty page:
- Pentair Warranty
- A&A (Pentair In-Floor) Warranty
- Fluidra Warranty (Zodiac / Jandy / Polaris / Caretaker)
- Paramount Warranty
- BlueSquare Warranty
- Hayward Warranty
- All Other Manufacturer Warranties
Note: Warranty coverage, registration, and service terms are provided directly by the manufacturer. Please review the details carefully to ensure proper understanding of coverage and claim procedures.
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