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 with crystal-clear confidence!

EFFORTLESS MAINTENANCE - Standard 20" x 4.5" size fits most housings with minimal upkeep—because your time is valuable.
PURE WATER PURE POWER - Removes 99% of chlorine, odors, and harmful chemicals for fresher, cleaner water throughout your home.
CERTIFIED PEACE OF MIND - NSF/ANSI certified to guarantee safety, quality, and performance you can trust.
ECO FRIENDLY FILTRATION - Crafted from premium coconut shell activated carbon for maximum adsorption and longer filter life.
FLOW WITHOUT COMPROMISE - Maintains a robust water flow rate up to 15 gallons per minute, ensuring no slowdown in your daily routine.

The iSpring FC25B is a high-capacity, NSF certified whole house water filter featuring a coconut shell activated carbon block that removes up to 99% of chlorine, odors, and chemicals. Designed to fit standard 20" x 4.5" housings, it supports flow rates up to 15 GPM and filters up to 20,000 gallons, delivering fresh, clean water while retaining healthy minerals. Backed by US-based lifetime technical support, it’s the smart choice for millennial professionals seeking reliable, eco-conscious home water filtration.

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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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Brand	iSpring
Model Number	1
Product Dimensions	11.43 x 11.43 x 50.8 cm; 2.36 kg
Color	gray
Name List for Name Plates	Carbon Filter
Quantity	1
Are Batteries Included	No
Item Weight	2.36 Kilograms

(11cm x 50cm) - iSpring FC25B NSF Certified High Capacity Big Blue Whole House Water Filter CTO Carbon Block, 11cm x 50cm

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