10 Best Sv System 3 Sta Rite System 3 S7m120 Pool Filter of 2025

Tested and Reviewed: Top 10 Sv System 3 Sta Rite System 3 S7m120 Pool Filter deals with expert ratings from 8.1 to a perfect 10

September 2025 Edition

Editor's Choice

9.7

ZOTEE

ZOTEE Pool Filters Cartridge Inner and Outer Set Replaces Sta-Rite 25021-0200s & 25022-0201s System 3 S7m120,300sq.ft

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Editor's bottom line:

“This sv system 3 sta rite system 3 s7m120 pool filter is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Filter Size: Inner filter OD: 8-3/4'', Length: 25-1/4'', Filtration Area: 100 sq. ft. Outer filter OD: 16-1/2'', Length: 18-3/4'', Filtration Area:200 sq.ft.
Replacement Models: Inner filter replacement for sta-rite system 3 25021-0200S and Outer filter replacement for sta-rite system 3 25022-0201S, One Set is compatible with sta-rite system 3 S7M120 Filter
Reinforcement Structure: With thickened trilobal fabric, heavy chlorine and break resistant end caps and reinforced center support, the filter provides high power propulsion flow and crystal clear water for your relaxed and healthy enjoyment.
Filter Effects: Advanced Trilobal fabric and more pleats improve filtering capacity, can efficiently remove hair, leaves, dust, sediment, sand, etc. Powerful performance provides you with clean, fresh and clear water.
Easy to Clean: The trilobal fabric structure material makes it easy to release impurities when cleaning the filter, easy to clean to repair the filter. Recommended that you clean filter cartridges every 2 weeks to maximize your filter's performance

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Picked by 156 people today

9.5

Save 6%

Aquatonics

Aquatonics Pool Filter O-Ring Replacement for Sta-Rite System 3, DE SD S7D75, S7M120, S7M400, S7MD60, S7MD72, S7S50 – Heavy-Duty Rubber O-Ring Replacement for 24850-0008 or O-485

6% OffFree Shipping

Main Highlights

The Ideal O-Ring Replacement: The Aquatonics 24850-0008 pool O-ring replacement is designed to ensure a perfect fit for pool and spa filter tanks, creating an airtight sealing that will last for years without breaking or getting damaged with ease.
Heavy-Duty Rubber Material: Made with heavy-duty rubber, our O-ring pool filter replacement is highly flexible but also super durable, being designed to withstand everyday pool usage as well as chlorine or salt damage.
Leakproof Sealing: Measuring 21.2" inside diameter, 22.36" outside diameter, and 0.57" cross section, our pool filter O-ring is specially designed to create a tight seal that prevents water from leaking out of the filter, contributing in this way to the optimal functioning of your pool or spa system.
Widely Compatible: The Aquatonics tank clamp O-ring replacement is compatible with Sta-Rite System 3 Modular Media SM series, pool and spa DE cartridge filter model S7D75, S8D110, and its a suitable replacement for part numbers 24850-0008, 248500008, APCO2311, O-485, STA1012821, 90-423-1485, ALDO-485-0, STA-051-2809.
Hassle-Free Installation: Our pool filter tank clamp replacement O-ring is also very easy to install. Simply put a good amount of PTFE-based lubricant around the gasket where the O-ring sits on the filter body to ensure a secure airtight seal and prevent water and air from leaking out of the filter.

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9.5

Save 13%

BLUEFLO

BLUEFLO S7M120 Pool Fliter Cartridges Inner and Outer Set Replacement for System 3 S7M120, Sta-Rite 25021-0200S & 25022-0201S, Darlly SR300, Pentair 300sq.ft

13% OffFree Shipping

Main Highlights

DIMENSIONS: Inner filter OD: 8-3/4'', Length: 25-1/4'', Filtration Area: 100 sq. ft. Outer filter OD: 16-1/2'', Length: 18-3/4'', Filtration Area:200 sq.ft.
REPLACEMENT FILTER: These replacement cartridge filters compatible with: Inner and Outer Set - Replaces Sta-Rite 25021-0200S & 25022-0201S System 3 S7M120 Set, Darlly Sr300
LONG LIFE: Blueflo Filter material is high density polyester fiber, high temperature resistance, and can work in medium alkali and medium acid environment. The high-density fibers provide ultra-long life.
FILTRATION PERFORMANCE: Advanced Trilobal fabric and more pleats improve filtering capacity, can efficiently remove hair, leaves, dust, sediment, sand, etc. Powerful performance provides you with clean, fresh and clear water.
EASY TO CLEAN: The trilobal fabric structure material makes it easy to release impurities when cleaning the filter, easy to clean to repair the filter. Premium filter material keeps your Pool or Spa water clear and easier to clean.

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9.2

Save 7%

Miory

S7M120 Pool Filter Cartridges, 170145 Pool Filter Replacement for sta-rite System 3 25021-0200S & 25022-0201S Pool Filter Cartridge Module, Compatible with sta rite System 3 S7M120 Filter, 300 Sq.Ft

7% OffFree Shipping

Main Highlights

Perfect CompatibilityS7M120 Pool Filter Cartridges Set includes Inner filter replacement for sta-rite system 3 25021-0200S - 100 sq.ft. filtration areaand Outer filter replacement for sta-rite system 3 25022-0201S - 200 sq.ft. filtration areaPerfectly compatible with sta-rite system 3 S7M120 Filter, because our pool filters are manufactured with stricter tolerance standards than other brands, ensuring superior performance and quality.
Efficient FiltrationS7M120 Pool Filter Cartridges has a total filtration area of 300 sq.ft, and combined with the latest "dirt locking" technology, can capture more impurities than ordinary fabrics, with a filtration capacity about 20% higher than ordinary filter cartridges. S7M120 Pool Filter Cartridge can effectively remove hair, dirt, sediment, sand, algae, etc., providing you with a clean swimming pool and spa environment.
Upgrade DesignOur S7M120 Pool Filter adopts a new trilobal filtration fabric structure, which increases the filtering area and improves the filtering effect; The high pressure end cap of chlorine resistant material, which is sturdy and durable and not easy to break; The excellent properties of the filter cloth resistance to stretching and breaking of the fold band and the precision process of uniform solder joint placement, improving the service life of the S7M120 filter.
Easy to CleanOur S7M120 Pool Filter and spa DE cartridge has a designed with a special trilobal filtration fabric structure, that is tested and certified, which not only efficiently filters impurities, but also makes it convenient for users to clean quickly. Only by using the impact of water pressure, can the impurities left in the filter element be quickly washed. Exchange a new filter for a little time cost.
After Sales Worry FreeYou will receive1 x 25021-0200S pool filter cartridges+1 x 25022-0201S pool filter cartridges, and we will provide you with a return and refund service, 1 YEAT WAR and 24 hours of online service. We have been producing the highest quality pool and spa filters for ten years. If you have any questions, please feel free to contact us. Note: This is only a compatible project and is not produced or sold under the original brand.

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9.0

Save 8%

Chryseos

Chryseos S7M120 Inner and Outer Pool Filter Cartridge Compatible with System 3 25021-0200S &25022-0201S, 300 Sq.Ft Filter Cartridge, 1 Set

8% OffFree Shipping

Main Highlights

GOOD REPLACEMENT: Compatible with S7M120, SR300, 25021-0200S and 25022-0201S. Note: All manufacturers' names and part numbers remain the property of their respective holder(s) and are used for compatibility purposes only. Chryseos is an independent brand.
FILTER SIZE: Inner Filter: Length: 25 1/4"; Outside Diameter: 8 3/4"; Filtration Area: 100 sq. ft. ; Outer Filter: Length: 18 3/4"; Outside Diameter: 16 1/2"; Filtration Area: 200 sq. ft.
ADVANTAGES OF FILTERS: These filters are easy to clean with good maintenance, and they are with long lifespan for extended use, making the clean and clear swimming experience with effective ones.
EASY INSTALLATION: These filters are easy to install and replace, really saving much time and effort.
CUSTERMER SERVICE: We really spare no efforts to satisfy good shopping experience, so if there is any question of the using, cleaning, replacing, or you are not sure of the model names you need, please kindly come to us, we would offer you good service!

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8.8

Save 6%

Yoozell

Yoozell YZ688E. System 3 S7M120 Pool Filter Inner&Outer Replacement 25021-0200S 25022-0201S Darlly SR300 300Sq.ft (S7M120 Set)

6% OffFree Shipping

Main Highlights

DimensionsLength: large 200 square foot cartridge measures: 18-3/4" L x 16-1/2"D, Outside Diameter: Small 100 square foot cartridge: 25-1/4" L x 8-3/4" D, Filter Area: 300 sq.ft
Replacement Models:Inner and Outer Set - Replaces 25021-0200S & 25022-0201S System 3 S7M120 Set
Powerful Filtration Performance: The unique trilobal fabric captures much more contaminants than regular fabric, which can efficiently removes hair, leaves, dust, sediment, sand, etc.
EASY TO WASH:We suggest to rinse your pool filters with clean water , this will help remove debris and protect your filter material. Under regular washings, pool filters will work more efficiently and last longer.
Professional&Reliable: Yoozell filters are made by Industry specified premium filtration fabric according to the strict standards and specifications required by the pool and spa industry. Yoozell filter cartridges are made with the scientifically desgined strong free flow cores which is the high-quality on the market.

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8.6

Savener

Savener SV-System 3 Sta-Rite System 3 S7M120 Pool Filter Inner&Outer Replacement 25021-0200S 25022-0201S Darlly SR300 300Sq.ft

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Main Highlights

Replacement ModelsInner and Outer Set - Replaces Sta-Rite 25021-0200S & 25022-0201S System 3 S7M120 Set
Professional&ReliableSavener filters are made by Industry specified premium filtration fabric according to the strict standards and specifications required by the pool and spa industry. Savener filter cartridges are made with the scientifically desgined strong free flow cores which is the high-quality on the market.
SIZELength: large 200 square foot cartridge measures: 18-3/4" L x 16-1/2"D, Outside Diameter: Small 100 square foot cartridge: 25-1/4" L x 8-3/4" D, Filter Area: 300 sq.ft
UniqueUnique trilobal fiber structure and Highly-uniform media delivers better filtration perpormancethe Savener filters are built to last using a durable filter media, constructed of high-density polyester and less wasted filtering areacan efficiently removes hair, leaves, dust, sediment, sand, etc
Cleaning Method& Long LastingWe suggest to rinse your pool& spa& hot tub filters with clean water every week, this will help remove debris and protect your filter material. Under regular washings, hot tub filters will work more efficiently and last longer.

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8.3

HANXER

HANXER System 3 S7M120 Inner and Outer Set Pool Filters- Replacement for Darlly SR300, 25021-0200S and 25022-0201S Pool Filter Cartridge, 300 Sq.Ft.

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Main Highlights

Specifications: Inner Filter:Length:25 1/4", outside diameter:8 3/4", filtration area:100 sq.ft. Outer Filter:Length:18 3/4", outside diameter:16 1/2", filtration area:200 sq.ft.
Replacement Filter: Inner Filter:Replaces 25021-0200S (S7M120) 25021-0200, 25021-0200S. Outer Filter:Replaces Sta Rite 25022-0201S.
Reinforcement Structure: With thickened trilobal fabric, heavy chlorine and break resistant end caps and reinforced center support, the filter provides high power propulsion flow and crystal clear water for your relaxed and healthy enjoyment.
Powerful Filtration Performance: Uniformity and high-performance trilobal fabrics have a higher capacity than ordinary bonded fabrics. The trilobal shape of the fabric fibers also helps capture particles, increases efficiency without causing pressure drop loss, and helps reduce the frequency of filter cleaning.
Easy to Clean: We suggest to rinse your pool filters regularly with clean water, this will help remove dirt and protect your filter material. With regular cleaning, the filter also needs to be replaced regularly to make your pool filter work more efficiently.

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Best Value

8.1

Save 20%

Poolzilla

Poolzilla Inner and Outer Filter Cartridge Replacement, Compatible with Pentair Sta-Rite System 3 S7M120, 25021-0200S [L x OD: 24" x 9''] Inner & 25022-0201S [L x OD: 18" x 16''] Outer Filter Set

20% Off

Main Highlights

Compatible ModelsCartridges are compatible with the Sta-Rite System 3 S7M120 Modular Media Filter Replacement Set | Compatible with model numbers: Outer - 25022-0201S [18"L by 16"OD by 10"ID] / Inner - 25021-0200 + 25021-0200S [24"L by 9"OD by 4"ID]
Best Value Spend more time swimming and less on maintenance! The advanced trilobal structure of our filter cartridges makes cleaning easier than with traditional point-bonded designs. Save time, effort, and expense, so you may make the most of your outdoor swimming experience.
ContentsOrder includes both the Inner [1] & Outer [1] Sta-Rite System 3 S7M120 Replacement Cartridge. Please Note: All manufacturers' names and part numbers remain the property of their respective holder(s) and are used for compatibility information only.
PurifiedPoolzilla filter cartridges offer enhanced water clarity by efficiently removing a variety of contaminants. Visible particles such as sediment, turbidity, sand, silt, and rust will easily be filtered out. Additionally, chlorine taste and odor can significantly decrease with continued use of our cartridges.
Quality Customer ServicePoolzilla cares deeply about the integrity of our products. We promise a risk-free shopping experience fully backed by our Quality Control, Customer Service and Technical Support Teams, located in New Jersey.

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8.1

Pentair

Pentair Sta-Rite 170145 System 3 S7M120 Modular Media Inner and Outer Filter Cartridge Set 25021-0200S & 25022-0201S

Main Highlights

Genuine OEM Pentair STA-RITE Inner and Outer Set - Sta-Rite 25021-0200S & 25022-0201S System 3 S7M120 Modular Media Set
FILTER CARTRIDGE SET - Get purer, cleaner water in your spa or hot tub with these Inner and Outer filter cartridge set Sta-Rite 25021-0200S & 25022-0201S System 3 S7M120
DIMENSIONS - Small 100 square foot pool filter cartridge (25021-0200S) measures: 25-1/4"L x 8-1/2"D, Large 200 square foot pool filter cartridge (25022-0201S) measures: 18-1/2"L x 16-1/4"D
EASY TO CLEAN - The Pentair Sta-Rite is designed to be long lasting and easy to clean so you can keep your pool and spa crystal clear.

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Our Best Overall Choice

Best Choice

9.7

ZOTEE

ZOTEE Pool Filters Cartridge Inner and Outer Set Replaces Sta-Rite 25021-0200s & 25022-0201s System 3 S7m120,300sq.ft

Free Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Filter Size: Inner filter OD: 8-3/4'', Length: 25-1/4'', Filtration Area: 100 sq. ft. Outer filter OD: 16-1/2'', Length: 18-3/4'', Filtration Area:200 sq.ft.
Replacement Models: Inner filter replacement for sta-rite system 3 25021-0200S and Outer filter replacement for sta-rite system 3 25022-0201S, One Set is compatible with sta-rite system 3 S7M120 Filter
Reinforcement Structure: With thickened trilobal fabric, heavy chlorine and break resistant end caps and reinforced center support, the filter provides high power propulsion flow and crystal clear water for your relaxed and healthy enjoyment.
Filter Effects: Advanced Trilobal fabric and more pleats improve filtering capacity, can efficiently remove hair, leaves, dust, sediment, sand, etc. Powerful performance provides you with clean, fresh and clear water.
Easy to Clean: The trilobal fabric structure material makes it easy to release impurities when cleaning the filter, easy to clean to repair the filter. Recommended that you clean filter cartridges every 2 weeks to maximize your filter's performance

Show Price

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