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Filters Fast FF-0121 Replacement Pool Filter Cartridge

FF-0121
$69.95
Buy 1 - 3 for $69.95 ea.
Buy 4+ for $64.95 ea.
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Made In USA
Product Highlights View All
  • Brand: Filters Fast®
  • Part Number: FF-0121, FF0121
  • Pack Size: 1
  • Diameter: 8 15/16"
  • Top: Open 4" w/core
  • Bottom: Open 4" w/core
  • Product Weight: 4 oz. oz
  • Surface Area: 120 Sq. Ft.
  • Length: 23 5/16"
  • Micron Rating: 20
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Filters Fast® FF-1293M Replacement Pool Filter

FF-1293M
$88.95
One-time delivery


Ships in 1 to 2 business days.
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Made In USA
Product Highlights View All
  • Brand: Filters Fast®
  • Part Number: FF-1293M, FF1293M
  • Pack Size: 1
  • Filter Life (Months): 6 to 12
  • Diameter: 8-15/16"
  • Top: 4"
  • Bottom: 4"
  • Product Weight: 3 oz
  • Surface Area: 150 Sq. Ft.
  • Length: 23-5/16"

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Use the table below to compare
Filters Fast FF-0121
Filters Fast FF-1293M
Diameter
8 15/16
8 15/16"
Top
4
4"
Bottom
4
4"
Length
23 1/4
23 1/4"
Media Weight (oz.)
4
7.6
Surface Area (Sq. Ft.)
120
120
Antimicrobial
Protection
tooltip-icon
The filter features a built-in treatment that actively resists the growth of bacteria, mold, mildew, and other odor-and stain-causing microbes. Filters will stay cleaner, be easier to maintain, and last longer than untreated filters.
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Product Information
Frequently Bought With This Item

The Filters Fast® FF-0121 is the correct replacement Pool filter for the Hayward C-1200, CX1200-RE. By using three essential components - spunbound polyester pleated filter media, thermally bonded polyurethane caps and punched PVC pipe - the FF-0121 provides lasting durability and continuous, crystal-clear water flow. While the FF-0121 meets and/or exceeds compatible OEM pool filters in performance and longevity, it also naturally prevents microbes, such as bacteria, mold, fungi, and mildew from growing or reproducing. Even when you backwash your pool's filter system, the FF-0121 can handle large amounts of dirt and waste water with ease.

Key Benefits:

  • Captures dirt and debris to help maintain clean, clear pool water.
  • Large, 120 Sq. Ft. filtration capacity provides substantial area for trapping debris.
  • Helps inhibit the growth and reproduction of bacteria, mold, fungi, and mildew.
  • Durable construction.
  • Designed for continuous water flow.
  • Reusable and cleanable.
  • Designed as a replacement for the Hayward C-1200 and CX1200-RE, and more such as Unicel C-8412, Pleatco PA120, and Filbur FC-1293.

Resources:

Specifications:

  • Brand: Filters Fast®
  • Part Number: FF-0121, FF0121
  • Pack Size: 1
  • Diameter: 8 15/16"
  • Top: Open 4" w/core
  • Bottom: Open 4" w/core
  • Product Weight: 4 oz. oz
  • Surface Area: 120 Sq. Ft.
  • Length: 23 5/16"
  • Micron Rating: 20

Compatible Parts:

The Filters Fast FF-0121 is the correct replacement for the following part numbers:

Part Number
  • ALADDIN 22002 R
  • FC-1293
  • HAYWARD C1200 R
  • HAYWARD CX-1200RE R
  • HW CX-1200RE R
  • PA120
  • PA120 COMPATIBLE
  • UNICEL C-8412 R
  • WATERWAY 817-0125N R
  • WP.HAY1293
  • WW CLEARWATER II R
  • ALADDIN 22002
  • ALADDIN 22002SVP
  • BALEEN AK-7005
  • CLARATHON FC1293
  • EXCEL XLS-802
  • FILBUR FC-1293
  • FILTERS FAST FF0121
  • HARMSCO H-8412
  • HAYWARD C-1200RE
  • HAYWARD CX1200-RE
  • HAYWARD CX1200RE
  • HURRICANE HF8412-01
  • LESLIE'S POOL SUPPLIES 304147
  • LESLIE'S POOL SUPPLIES 46191
  • MAGNUM HW1200
  • MAGNUM WW125CW
  • MAGNUM WW125PC8412
  • NEPTUNE 8R8121
  • PLEATCO PA120
  • PLEATCO PA120-4
  • PLEATCO PA120-EC
  • PLEATCO PC125
  • PLEATCO PWWCT125
  • PORPOISE PP-B2-M
  • PROCLEAN 817-0125N
  • PROCLEAN 817-0125P
  • PURE N CLEAN PC1293
  • SPA DADDY SD-00105
  • SPA DADDY SD-00722
  • SPA DEPOT FC1293
  • UNICEL C-8412
  • WATERWAY 25230-0125S
  • WATERWAY 817-0125NB
  • YUNDA H&H PLF120A
  • No results for {X}

Frequently Asked Questions:

How do you clean the Filters Fast® FF-0121 Replacement Pool Filter Cartridge?

  1. It is time to clean your Pool filter cartridge when you notice a decrease in the pressure from your jets, or when the pressure in your pool filter tank increases by 8 psi from when the filter was newly installed.
  2. In order to clean the pool filter, first remove it from its canister and use a garden hose to dislodge any debris between the pleats. Soak the pool filter in commercially prepared filter cleaner, or spray with the same to remove organic material and oils. To remove stains soak overnight in a solution of one quart bleach and 5 gallons of water.
  3. Thoroughly rinse the pool filter cartridge with fresh water and reinstall it into the canister. Be sure to follow manufacturer's directions for installing the replacement pool filter.
  4. DO NOT use a high-pressure car wash wand, a stiff brush or acid wash to clean the pool filter cartridges as these methods can damage the filter media.

How long does the Filters Fast® FF-0121 Replacement Pool Filter Cartridge typically last?

The Filters Fast® FF-0121 Replacement Pool Filter Cartridge's lifespan depends on pool usage, water conditions, debris levels, and maintenance frequency. Regular cleaning can help extend its service life but replace it when the filter media is damaged or cleaning no longer restores adequate water flow.

How can I tell when the Filters Fast® FF-0121 Replacement Pool Filter Cartridge needs to be replaced rather than cleaned?

Replace the cartridge if its pleated media is torn, the end caps are damaged, or water flow and filter pressure do not return to normal after thorough cleaning. Persistent damage can reduce filtration effectiveness.

Can the Filters Fast® FF-0121 Replacement Pool Filter Cartridge help reduce cloudy pool water?

Yes. By capturing suspended dirt and other particles, the Filters Fast® FF-0121 Replacement Pool Filter Cartridge can help improve water clarity. However, cloudy water can also result from chemical imbalances, algae, or inadequate circulation, which require separate attention.


Customer Reviews:

Total Reviews: 4 Average Rating: 4.2 / 5.0

Filtersfast Reviews on Trust Pilot external site (opens in a new tab)
Barry Coleman2025-06-23

Filter works good. Need to wash frequently to improve longevity.

Collected by Trustpilot.com
Rico Moore2025-06-08

this delivery is of better quality than the last. The lateral bands are firmly attached to the vertical flutes. Thanks

Collected by Trustpilot.com
Rico Moore2025-03-09

I get this filter in the auto ship program. The last 2 filters have had issues with the lateral bands coming apart from the vertical filter element Otherwise, the filter is good

Collected by Trustpilot.com
John Carty2024-07-26

Works great so far.

Collected by Trustpilot.com

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