System 3 Mod Media Cartridge Filter 400 Sq. Ft. - S7M400


Model # S7M400

By Sta-Rite

  5 Average  



Model # S7M400

Alternate Part #'s PENS7M400, STA-05-254

Product Description

Inyo Recommended Filters

Pressure Gauge 

Valve And Gauge Assembly 

Tank Body O-Ring 

Drain Plug 

Replacement Cartridge Inner 

Replacement Cartridge Outer 

With Sta-Rite`s System 3 Modular Media Pool Filters unique design, you can look forward to season-free maintenance every year.

  • Holds 50 Times More Dirt Than A Sand Filter
  • Less Cleaning Needed - Gathers and holds more dirt so you clean less often.
  • Opens Easily - The split tank design allows for convenient access for cleaning or changing filter media.
  • Designed For Safety - The use of Posi-Lok Clamps enables safe, easy access to filter.
  • Durable, Lightweight And Corrosion Resistant - Dura-Glas Exterior
  • Landscape Friendly - Sleek, black tank profile blends well into any landscape design
  • Available In Four Sizes - 300, 400, 450 and 500 sq. ft. filter areas.

For More Sta-Rite Filters


Product Specifications

Port Size:
2 in.
Filtration Area:
400 sq. ft.
Flow Rating:
50 - 90 GPM

?     Asked on 5/2/2017 by Tim Askew

Is there a replacement for a System 3 S7D75 DE filter ,or a conversion kit (not sand) to a cartridge filter (System 3) ? Regards, Tim Askew

A  Answered on 5/2/2017 by InyoPools Product Specialist Scott W.

There is not a conversion kit, but the S7M400 cartridge filter would comparable to your S7D75 DE filter.

?     Asked on 6/13/2015 by bob

is there a generic replacement filter that would be cheaper for me to buy for sta-rite sytem s7m400 filter numbers 25021-0223s and 2502d2-0224s

A  Answered on 6/14/2015 by InyoPools Product Specialist Patrick P.

Unfortunately there is still not a generic version of the Sta Rite System 3 cartridges. I beleive that Sta-Rite has a patent on this design and the generics will not be available until that patent runs out.

?     Asked on 5/29/2015 by Victor Lugo

I need to know the right part number for a STA-RITE Modular Media Filter - Model # S7M400. That would be for all filters to include, large and small cartridge and the air bleed filter. Also nee to know if you sell the o-ring clamps for the clamp assembly?

A  Answered on 5/29/2015 by InyoPools Product Specialist Patrick P.

Hi Victor, Here are the parts you will require and we have all of these items in stock ready to ship: S7M400 Large Outer Cartridge, S7M400 Small Inner Cartridge, S7M400 Air Bleed Assembly and the S7M400 Clamp O-ring. You may also view the Complete Parts Breakdown for The S7M400 Cartridge Filter here.

?     Asked on 9/21/2006 by Guest

Does this come with the filter cartridge and gauges?

A  Answered on 9/21/2006 by InyoPools Product Specialist Patrick P.

This filter comes direct from the manufacturer and includes the cartridge and gauges.


Review Summary

 (Average 5  out of 5 stars)
1 Ratings
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