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

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

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.

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.

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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

Product ID: 260717945

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Details

Material
Ro
Product dimensions
6.4D x 6.4W x
Item weight
0.01 Ounces
External testing certification
ANSI
Product benefits
Improves taste

⏳6-month high capacity lifespan

✅NSF certified for safety

💧3-stage multi-filter system

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.
CERTIFIED PEACE OF MIND - NSF certification guarantees your water meets the highest safety and quality standards.
HASSLE FREE MAINTENANCE - Individually wrapped cartridges and clear instructions make filter replacement quick and simple.
UNIVERSAL COMPATIBILITY - Designed to fit most standard 10" x 2.5" reverse osmosis systems for effortless upgrades.
TRIPLE ACTION FILTRATION - Sediment, granular activated carbon, and carbon block filters work in harmony to remove impurities and odors.

The iSpring F3 NSF Certified 6-Month Prefilter Replacement Pack includes three individually wrapped 10" x 2.5" cartridges—sediment, granular activated carbon, and carbon block filters—designed to fit most standard reverse osmosis systems. Certified for safety and optimized for a 6-month lifespan, this pack ensures consistently clean, great-tasting water with easy installation and maintenance.

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