We are looking to install this in a seasonal cabin, can this be winterized?

Hi Cate, This unit should be protected from direct sunlight or freezing temperature. Depending on the environment in the winter, the housings might become damaged. Please contact us with more details so we can better assist you. iSpring Water Systems 678-261-7611 support@ispringfilter.com

I received this whole house filter and one of the cartridges is broken model fc25b. can i get a replacement of this broken cartridge?

allfilters.com I used iSpring for a while and then the types of filters ordered was so confusing......and its all made in China.......unlike advertised. So I switched to allfilters....now keep in mind that they don’t send one at a time....but the price difference, the nonconfusion, sent by USPS and customer support won me over. ALL MADE IN THE USA! Allfilters also sells the canisters. When ordering filters go by the size ei: 4 1/2” x 20”

Do you still need a water softener with this if hardness is 250 ppm?

Hi there, It's optional but would help p[rolong the life of the filters if you install one. We usually recommend a water softener with TDS higher than 700 PPM. Please let us know if you have other concerns. Stay safe! iSpring Water Systems, LLC

What pressure gauge is recommended to install pre and post filter that will work with 3/4" PEX supply line?

I use the one on a spin down pre filter and a 3/4” shark bite with gauge post filter

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💧 Elevate your home’s water game—because your family deserves the freshest flow.

FITS LIKE A GLOVE - Standard 20” x 4.5” size compatible with most whole-house filter housings—easy upgrade, zero hassle.
PURE WATER PURE POWER - Removes up to 99% of chlorine for fresher, cleaner water all day long.
ECO FRIENDLY FILTRATION - Crafted from high-quality coconut shell activated carbon for superior contaminant adsorption.
FLOW WITHOUT COMPROMISE - Maintains a robust water flow of up to 15 gallons per minute—no slowdowns here.
SUPPORT THAT NEVER QUITS - Lifetime free tech support from a U.S.-based team ensures peace of mind with every filter.

The iSpring FC25B Whole House Water Filter uses a 20” x 4.5” CTO carbon block made from premium coconut shell activated carbon to remove up to 99% of chlorine, odors, and chemicals while maintaining a strong water flow of up to 15 GPM. Compatible with standard housings and tested to NSF/ANSI standards, it offers long-lasting filtration without stripping beneficial minerals. Backed by lifetime U.S.-based tech support, it’s the smart choice for healthier, better-tasting water throughout your home.

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