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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💧 Elevate your hydration game with iSpring’s triple-filter power!

TRIPLE STAGE PURITY - Sediment, GAC, and CTO filters work in harmony to deliver crystal-clear water.
FRESH TASTE GUARANTEE - Effectively removes chlorine, odors, and tastes for refreshing hydration every time.
EXTENDED MEMBRANE LIFE - Innovative pre-filters reduce clogging and pressure loss, protecting your RO system.
UNIVERSAL COMPATIBILITY - Designed for RCC7 series models, ensuring seamless replacement and performance.
PREMIUM CARBON EFFICIENCY - High-quality coconut shell carbon with 1.5mm pores maximizes contaminant removal.

The iSpring F3 Replacement 3-Step Water Filter Cartridge set features a sediment filter, granular activated carbon, and CTO carbon block to extend the life of your RCC7 series reverse osmosis system. Engineered with premium coconut shell carbon and advanced filtration layers, it ensures up to 12 months of clean, fresh-tasting water by efficiently removing chlorine, odors, and sediment.

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Brand	iSpring
Model Number	F3
Product Dimensions	27.94 x 15.24 x 15.24 cm; 0.28 g
Color	white
Name List for Name Plates	6 month pre-filter replacement set
Material	Carbon
Wallpaper Pattern	Reverse
Quantity	3
Laser Class	RO
Included Components	Water Filter
Are Batteries Included	No
Item Weight	0.28 g

iSpring Reverse Osmosis Water Filter Replacement 3-Step Front Water Filter Cartridge for RCC7 Series Built-in Water Filter Only 3 Filters

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