---
product_id: 298653079
title: "iSpring FC25B NSF Certified High Capacity Big Blue Whole House Water Filter CTO Carbon Block, 4.5\" x 20\""
brand: "ispring"
price: "R$3156"
currency: BRL
in_stock: true
url: https://www.desertcart.com.br/products/298653079-ispring-fc25b-nsf-certified-high-capacity-big-blue-whole-house
store_origin: BR
region: Brazil
---

# Up to 15 GPM flow rate Premium coconut shell carbon 99% chlorine removal iSpring FC25B NSF Certified High Capacity Big Blue Whole House Water Filter CTO Carbon Block, 4.5" x 20"

**Brand:** ispring
**Price:** R$3156
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your home’s water game—because your family deserves nothing less!

## Quick Answers

- **What is this?** iSpring FC25B NSF Certified High Capacity Big Blue Whole House Water Filter CTO Carbon Block, 4.5" x 20" by ispring
- **How much does it cost?** R$3156 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/298653079-ispring-fc25b-nsf-certified-high-capacity-big-blue-whole-house)

## Best For

- ispring enthusiasts

## Why This Product

- Trusted ispring brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** High-capacity 20" x 4.5" carbon block filter designed for long-lasting performance and minimal maintenance.
- • **Certified Confidence:** NSF/ANSI tested and certified for trusted, industry-leading filtration standards.
- • **Pure Water, Pure Power:** Removes up to 99% of chlorine, odors, and chemicals for crisp, clean water.
- • **Flow Without Compromise:** Maintains a robust water flow rate of up to 15 gallons per minute—no slowdowns here.
- • **Support That Stands By You:** Lifetime free tech support from a dedicated U.S.-based team ensures peace of mind.

## Overview

The iSpring FC25B is a high-capacity whole house water filter featuring a 20" x 4.5" coconut shell activated carbon block that removes up to 99% of chlorine, odors, and chemicals while maintaining a strong flow rate of up to 15 GPM. NSF/ANSI certified and compatible with standard housings, it offers long-lasting filtration without stripping beneficial minerals, backed by lifetime U.S.-based tech support.

## Description

Enjoy cleaner, better-tasting water throughout your home with the iSpring FC25B Whole House Carbon Block Filter. Specially designed to reduce up to 99% of chlorine, odors, cloudiness, and chemicals, this high-performance 20" x 4.5" filter uses premium coconut shell activated carbon for maximum efficiency and long-lasting filtration. Compatible with standard whole-house filter housings, it maintains strong water flow—up to 15 GPM—with minimal maintenance. Tested to meet NSF/ANSI standards, the FC25B delivers reliable performance you can trust. Backed by lifetime tech support from our U.S.-based team, it’s the perfect solution for families seeking healthier water without removing beneficial minerals.

## Features

- Protect Your Family and Household Appliance from Chlorine and More: Say goodbye to smelly, bad tasting water! The FC25B carbon block water filter is specially designed to remove up to 99% of chlorine from water as well as taste and odor compounds, cloudiness, and chemicals.
- Standard Size: Our FC25B whole house water filter fits standard housings that requires 20” x 4.5” water filter cartridges, including brand name models. The 20” x 4. 5” water filter cartridge has a minimum impact on water flow (up to 15 GPM) and require minimum maintenance
- Top-Notch Quality: Our FC25B CTO Carbon Block filters are made of high-quality coconut shell activated carbon for maximum filtration efficiency and filter life. Activated carbon is an effective adsorbent because it is a highly porous material and provides a large surface area to which contaminants may adsorb. This whole house water filter is tested by an independent third-party to meet NSF/ANSI standards.
- Peace of Mind Customer Service: Register online to activate your manufacturer and life-time free tech support from U. S. local support team. We stand behind our products and if you encounter any problems with any of our water filters please reach out to us immediately. We are happy to help!
- Please Note: The water filter cartridges are individually wrapped to ensure freshness. Please unwrap the cartridges before use. Unlike an RO membrane, the filters don’t reduce Total Dissolved Solids (TDS), and instead keeps healthy minerals in your water. If you are interested in a filter that removes TDS, consider our iSpring Reverse Osmosis (RO) systems.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Carbon Block |
| Product Dimensions | 15.2D x 55.9W x 15.2H Centimeters |
| Item Weight | 2.36 Kilograms |
| Product Benefits | Removes Chlorine, Taste, and Odor Compounds for Cleaner, Better-Tasting Water While Maintaining High Water Flow Rate |
| Brand | iSpring |
| UPC | 662425080250 |
| Global Trade Identification Number | 00662425080250 |
| Net Quantity | 1.0 Count |
| Number of Items | 1 |
| Manufacturer | iSpring Water Systems |
| Item model number | 1 |
| ASIN | B01M1197LW |

## Product Details

- **Material:** Carbon Block
- **Product Dimensions:** 15.2D x 55.9W x 15.2H Centimeters
- **Item Weight:** 2.36 Kilograms
- **Product Benefits:** Removes Chlorine, Taste, and Odor Compounds for Cleaner, Better-Tasting Water While Maintaining High Water Flow Rate
- **Brand:** iSpring

## Images

![iSpring FC25B NSF Certified High Capacity Big Blue Whole House Water Filter CTO Carbon Block, 4.5" x 20" - Image 1](https://m.media-amazon.com/images/I/61y2R3tF6qL.jpg)
![iSpring FC25B NSF Certified High Capacity Big Blue Whole House Water Filter CTO Carbon Block, 4.5" x 20" - Image 2](https://m.media-amazon.com/images/I/61-1+LcWMaL.jpg)
![iSpring FC25B NSF Certified High Capacity Big Blue Whole House Water Filter CTO Carbon Block, 4.5" x 20" - Image 3](https://m.media-amazon.com/images/I/61zzN4ZcYgL.jpg)
![iSpring FC25B NSF Certified High Capacity Big Blue Whole House Water Filter CTO Carbon Block, 4.5" x 20" - Image 4](https://m.media-amazon.com/images/I/81PGKY30RtL.jpg)
![iSpring FC25B NSF Certified High Capacity Big Blue Whole House Water Filter CTO Carbon Block, 4.5" x 20" - Image 5](https://m.media-amazon.com/images/I/91SG0ADdtdL.jpg)

## Questions & Answers

**Q: We are looking to install this in a seasonal cabin, can this be winterized?**
A: 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?**
A: 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?**
A: 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?**
A: I use the one on a spin down pre filter and a 
3/4” shark bite with gauge post filter

## Frequently Bought Together

- iSpring FC25B NSF Certified High Capacity Big Blue Whole House Water Filter CTO Carbon Block, 4.5" x 20"
- iSpring FM25B 4.5" x 20" Big Blue High Capacity Iron Manganese Reducing Replacement Water Filter

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-23*