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—pure, powerful, and built to last!

LONG LASTING DURABILITY - Filter lifespan of 50,000 gallons—3x longer than traditional green sand filters.
CERTIFIED SAFETY QUALITY - Meets strict FDA and NSF/ANSI standards for safe, reliable drinking water.
BROAD COMPATIBILITY STABILITY - Operates flawlessly across pH 5.8-8.6 and temperatures 40-113°F for consistent results.
EFFORTLESS HIGH FLOW PERFORMANCE - Supports 4-8 GPM with minimal pressure drop, ensuring steady water supply.
UNMATCHED IRON MANGANESE PURITY - Drastically reduces iron from 3.0ppm to 0.01ppm for crystal-clear water.

The iSpring FM25B is a high-capacity whole house water filter replacement designed to dramatically reduce iron and manganese levels to near-zero, delivering clean, safe water at flow rates up to 8 GPM. Engineered for durability and efficiency, it lasts up to 50,000 gallons—three times longer than traditional filters—while meeting rigorous FDA and NSF/ANSI safety standards.

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Brand	iSpring
Model Number	1
Product Dimensions	11.43 x 11.43 x 50.8 cm; 3.63 kg
Color	white
Name List for Name Plates	Iron Filter
Material	Iron
Wallpaper Pattern	Water Filter
Quantity	1
Included Components	1 x FM25B Filter
Are Batteries Included	No
Item Weight	3.63 Kilograms

iSpring FM25B Iron Manganese Reduction Whole House Water Filter Replacement Large Capacity 4.5" x 20"

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