How many mg/l of sodium and other minerals does this add?

Hi, The filter contains mineral stones, calcite, and Corosex and the amount of these minerals can vary depending on how long the water sits in the Alkaline cartridge. When the system is not in use, the longer the water sits inside the cartridge, the more concentrated the minerals become. For this reason it is hard to determine the exact amounts of the minerals provided in the water supply. Please contact our office at 678-261-7611 if you have any additional questions. Thank you, iSpring Water Systems LLC 678-261-7611

Does this item fit to the standard 10 inch filter housing. Thanks

Thanks for the question! This filter is self containing and does not require a housing. Kindest Regards, Josh iSpring Water Systems, LLC

Can this be used to raise the ph for marine aquariums?

Hi, Yes you can use this filter to raise the PH of the RO water. Please contact us at 678-261-7611 if you have any questions. Thank you, iSpring Water Systems LLC

I have a five stage ro system which comes in a compact box. Can this be installed between the the ro system and the faucet? Do you have instructions ?

Hello, Thank you for posting your question. Yes, you can purchase this and a filter add-on kit in our website or here on our amazon store. We can also provide you a user manual for a 6 stage RO system that includes this mineral filter. Kind Regards, iSpring Water Systems Tel: (678) 261-7611 Email: feedback@ispringfilter.com

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💧 Elevate your water game — pure, fresh, and always on point!

SEAMLESS COMPATIBILITY - Standard 10" x 2.5" size fits most under-sink RO systems effortlessly
CRYSTAL CLEAR HYDRATION - Removes up to 99% chlorine for fresh, odor-free water every time
ECO FRIENDLY CARBON POWER - Uses high-capacity coconut shell carbon for superior adsorption and longer life
PRECISION 5 MICRON FILTER - Captures fine particles and contaminants with surgical accuracy
TRUSTED QUALITY SUPPORT - NSF/ANSI certified with lifetime US-based tech support for peace of mind

The iSpring FC15 is a 10" CTO carbon block water filter cartridge designed for under-sink reverse osmosis systems. It features a 5 micron filtration rating using activated coconut shell carbon to remove up to 99% of chlorine, taste, and odor compounds, ensuring clean, fresh water. Compatible with most standard 10" RO systems, it supports up to 6,000 gallons at 1 GPM flow rate and is NSF/ANSI certified for quality assurance.

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