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Whole House Water Filter Cartridge, Iron & Manganese Reducing Water Filter Whole House, 4.5" x 20", Model: FM25B

Whole House Water Filter Cartridge, Iron & Manganese Reducing Water Filter Whole House, 4.5" x 20", Model: FM25B

Q: 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

Q: 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”

Q: 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

Q: 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

Product ID: 256972724

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Details

Material
Iron
Product dimensions
15.2D x 55.9W
Item weight
8 Pounds
External testing certification
ANSI
Product benefits
Removes iron

⏳Lasts up to 50,000 gallons (~12 months)

⚡High flow rate with low pressure drop

💧Reduces iron & manganese to 0.01 ppm

Frequently Bought Together

iSpring Whole House Water Filter Cartridge, Iron & Manganese Reducing Water Filter Whole House, 4.5" x 20", Model: FM25B

iSpring WSP-1000 Reusable Whole House Spin Down Sediment Water Filter, 1000 Micron, Flushable Prefilter Filtration, 20GPM, 1" MNPT + 3/4" FNPT, Brass

iSpring ORBX2 Replacement O-ring for Whole House Water Filtration Systems - Pack of 2

Description

💧 Elevate your home’s water game—pure, powerful, and built to last!

BUILT TO LAST - Outperforms green sand filters with 3x longer lifespan, saving you time and money
EFFORTLESS FLOW - Delivers up to 8 GPM with minimal pressure loss—no compromise on water pressure
HASSLE FREE SUPPORT - Lifetime US-based tech support ensures your water stays flawless year-round
ULTRA PURE HYDRATION - Slashes iron from 3.0 ppm to near zero for crystal-clear water
HEALTH FIRST ASSURANCE - Meets FDA & NSF/ANSI standards for safe, clean drinking water you can trust

The iSpring FM25B whole house water filter cartridge expertly reduces iron and manganese levels from up to 3.0 ppm and 1.0 ppm down to 0.01 ppm, ensuring pristine water quality throughout your home. Designed for high flow rates with minimal pressure drop, it supports feed water pressures between 20-100 psi and lasts up to 50,000 gallons or about 12 months. Manufactured to FDA and NSF/ANSI standards, this durable filter offers superior performance and peace of mind backed by lifetime US-based tech support.

Specifications

Brand	iSpring
Model Number	FM25B
Color	White
Product Dimensions	11.43 x 11.43 x 50.8 cm; 3.63 kg
Capacity	50000 Gallons
Material	Iron
Item Weight	3.63 Kilograms

Have a Question? See What Others Asked

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

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

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

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

Common Questions

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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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