Pentair Sta-Rite System 3 Cartridge Filter 200 sf | 25022-0201S
Pentair
SKU: 25022-0201S
Pentair / Sta-Rite 25022-0201S System:3 Outer Cartridge Module (S7M120) | 200 Sq Ft
The Pentair / Sta-Rite 25022-0201S is the OEM replacement large outer cartridge module for the Sta-Rite System:3 modular media filter model S7M120. This outer element provides 200 square feet of filtration area and is designed to work with the matching inner cartridge to deliver high-capacity, low-restriction cartridge filtration.
Compatibility
- Fits filter model: Sta-Rite System:3 S7M120
- Element position: Outer (large) cartridge module
- Filtration area: 200 sq ft
- Used with inner cartridge: Sta-Rite 25021-0200S (inner module)
Key Specs
- Part number: 25022-0201S
- Type: Outer cartridge module (System:3 modular media)
- Approx. dimensions: 18-1/2" length x 16-1/4" diameter
What This Part Does
- Captures dirt and debris to keep water clear while maintaining strong system flow
- Restores normal pressure and performance when the existing cartridge is worn or permanently restricted
- Helps extend time between cleanings compared to smaller cartridge filters
When to Replace
- Tears, splits, broken bands, or damaged end caps
- Media is brittle/deformed or will not clean up after a deep cleaning
- Filter pressure stays high shortly after cleaning (persistent restriction)
- Cartridge has collapsed or become misshapen from prolonged high pressure or water hammer
Installation Notes
- Turn off the pump and relieve all pressure at the filter air relief before opening the tank.
- Remove the old outer cartridge and rinse/clean the tank interior and sealing surfaces.
- Inspect the tank O-ring and replace if flattened, cracked, swollen, or nicked; lubricate lightly with pool-safe silicone lubricant.
- Install the cartridge squarely so it seats evenly—misalignment can cause bypass and poor filtration.
- Restart the system and record your clean starting pressure as your baseline.
Cleaning & Care Tips
- Rinse thoroughly with a strong hose spray between pleats to remove debris.
- For oils/lotions: soak in a cartridge cleaner first, then rinse.
- For scale: descale only after degreasing (cleaner first, descaler second).
- Clean when pressure rises about 8–10 PSI over your clean baseline (or per your service standard).
Related Products (Aqua Pool Supply)
- 25022-0201S Outer Cartridge (Search)
- S7M120 Inner Cartridge 25021-0200S (Search)
- S7M120 Inner + Outer Cartridge Set 170145 (Search)
- System:3 S7M120 Tank O-Ring (Search)
- Cartridge Filter Cleaner (Search)
- Pool-Safe Silicone O-Ring Lubricant (Search)
Maintenance Tips
- Keep water chemistry balanced—extreme pH and high calcium can shorten cartridge life.
- If pressure rises unusually fast, inspect for algae, heavy debris load, or upstream restrictions.
- Consider keeping a spare cartridge set to swap in immediately while the dirty set soaks/cleans.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 8:00 am to 4:00 pm Phoenix Time
Saturday and Sunday: Closed
- Orders costing more than $300 WILL be required to have signature confirmation upon delivery.
- Handling time is typically only 1 day.
- Any item ordered after 1pm Phoenix time, may not ship same-day.
- Call us if you require expedited shipping and we can give you quotes based on your needs.
Return Policy:
- All products, except as noted below, are eligible for return up to 30 days after receipt of item.
- For returns, an RMA form must be filled out HERE or customers can call for additional help.
- Shipping costs will be deducted from all returned items.
- Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in.
- Items broken, damaged, or inoperable due to installer error will not be refunded.
- Fill out the return form or give us a call to obtain an RMA and return shipping label.
- There are no returns on the Pentair Colorsync 618031
- No returns on pool cleaners.
- No returns on opened seals and o-rings.
- No returns on capacitors.
- If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
- All products denied upon arrival at customers house WILL be charged the cost to ship.
- Visa Gift Card Promotions: Gift cards are sent within 14 days of the order. When accepting the Visa Gift card, you agree that if your order is returned or refunded, this amount will be deducted from the refunded amount. All Visa Gift cards are sent via email in an E-Gift Card format and are non refundable.
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