iSpring F3 NSF Certified 6-Month Prefilter Replacement Water Filter Cartridge Pack Set for Standard Reverse Osmosis RO Systems

iSpring F3 NSF Certified 6-Month Prefilter Replacement Water Filter Cartridge Pack Set for Standard Reverse Osmosis RO Systems

Q: Can this set of replacement filters be used for the iSpring US31?

Hi, Yes, these filters are compatible with the unit model US31. For more details, please contact us at (678)261-7611. Regards, iSpring Water Systems, LLC

Q: Is the water supposed to come out foggy and fizzy?

Hi Ann, Yes, for a week or two, the water might come out cloudy due to the trapped air bubbles in the system. In time, these will dissipate and your water will begin to clear up. If you have any questions or need additional assistance, please contact us at support@123filter.com or call us at (678) 261-7611. Thanks, iSpring Water Systems, LLC

Q: Will these cartridges work on an existing Culligan RO system? How will I know? Thanks.

If the size of filter is the same and the end deals are the same then, I think they should work.

Q: Can we use this package for WCC31?

Thanks for the question! You can certainly use this filter pack for the WCC31. We use industry standard filters, so each of the 2.5" x 10" cartridges and filter packs are completely interchangeable with each other.

Product ID: 11353547

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Details

Material
Carbon Fiber
Product Dimensions
11"D x 6"W x
Item Weight
0.01 Ounces
External Testing Certification
ANSI
Product Benefits
Removes and is

⏳6-month high capacity lifespan

✅NSF certified for trusted purity

💧3-stage multi-filter system

Frequently Bought Together

iSpring F3 NSF Certified 6-Month Prefilter Replacement Water Filter Cartridge Pack Set for Standard Reverse Osmosis RO Systems

iSpring US31 Classic 3-Stage Under Sink Water Filtration System for Drinking, Tankless, High Capacity, Sediment + GAC + Carbon

Description

💧 Elevate your hydration game with every sip!

LONG LASTING PURITY - Enjoy up to 6 months of consistently clean, great-tasting water without frequent replacements.
SEAMLESS COMPATIBILITY - Designed to fit most standard reverse osmosis systems for effortless upgrades.
CERTIFIED PEACE OF MIND - NSF certification guarantees your water meets rigorous safety and quality standards.
HASSLE FREE MAINTENANCE - Individually wrapped filters ensure freshness and easy installation with clear guidance available.
TRIPLE ACTION FILTRATION - Sediment, granular activated carbon, and carbon block filters work in harmony to remove contaminants effectively.

The iSpring F3 NSF Certified 6-Month Prefilter Replacement Pack includes three individually wrapped 10" x 2.5" filters—sediment, granular activated carbon, and carbon block—designed for standard reverse osmosis systems. Certified by NSF, this pack ensures safe, clean, and great-tasting water for up to six months, combining convenience with trusted filtration performance.

Specifications

Manufacturer	Ispring Water Systems LLC.
Part Number	F3
Item Weight	0.01 ounces
Product Dimensions	11 x 6 x 6 inches
Country of Origin	China
Item model number	F3
Is Discontinued By Manufacturer	No
Size	3 Count (Pack of 1)
Color	White
Style	6-Month Prefilter Replacement Set
Finish	Yes
Pattern	Reverse
Item Package Quantity	1
Number Of Pieces	3
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

Can this set of replacement filters be used for the iSpring US31?

Is the water supposed to come out foggy and fizzy?

Will these cartridges work on an existing Culligan RO system? How will I know? Thanks.

Can we use this package for WCC31?

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