By Sta-Rite



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 9/21/2006by 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.

?     Asked on 5/29/2015by 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 6/13/2015by 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 5/2/2017by 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 3/27/2023by CHARLIE HIRLING

Why is the product not available on line? Do you have to buy it from a retail store?retail What is the estimated cost in zip code 70003

A  Answered on 4/4/2023 by InyoPools Product Specialist Hector F.

Hello Charlie, this model filter can only be purchased with a local retailer or pool contractor per Sta Rites's online policy. You will need to confirm pricing with your local retailers as we unfortunately do not have access to their pricing. 


Review Summary

 (Average 5  out of 5 stars)
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