---
product_id: 42458443
title: "FC25B"
brand: "ispring"
price: "698.58 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "I Spring"
url: https://www.desertcart.tn/products/42458443-fc25b
store_origin: TN
region: Tunisia
---

# up to 15 GPM flow rate premium coconut shell carbon 99% chlorine removal FC25B

**Brand:** ispring
**Price:** 698.58 DT
**Availability:** ✅ In Stock

## Summary

> 🚿 Elevate your home’s water game—pure, powerful, and perfectly filtered!

## Quick Answers

- **What is this?** FC25B by ispring
- **How much does it cost?** 698.58 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/42458443-fc25b)

## 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

- • **Effortless Flow:** Maintains a powerful water flow up to 15 gallons per minute—no compromise on pressure or performance.
- • **Trusted & Tested:** NSF/ANSI certified and backed by lifetime US-based tech support—peace of mind for your family’s health.
- • **Crystal-Clear Hydration:** Eliminates 99% of chlorine, taste, and odor for pure, refreshing water throughout your home.
- • **Premium Filtration Tech:** Crafted with high-grade coconut shell activated carbon for superior contaminant adsorption and long filter life.
- • **Universal Fit, Instant Upgrade:** Standard 20” x 4.5” size fits most whole house filter housings, including popular iSpring models.

## Overview

The iSpring FC25B is a high-capacity 20” x 4.5” whole house CTO carbon block water filter designed to remove up to 99% of chlorine, taste, odor, and other contaminants. It supports a strong flow rate of up to 15 gallons per minute, fits standard housings including iSpring WGB32B & WHO32B series, and uses premium coconut shell activated carbon for maximum filtration efficiency. NSF/ANSI certified and backed by lifetime US-based customer support, it ensures clean, great-tasting water without stripping healthy minerals.

## Description

Buy iSpring FC25B 20" x 4.5" Whole House Water Filter | Reduces Chlorine, Taste, Odor, and More, CTO Carbon Block, Fits iSpring WGB32B & WHO32B Series Whole House Water Filters: Industrial & Scientific - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: WGB32B iSpring Whole House Water Filtration System - We live in a small town that has experienced frequent periods of discolored water for decades. We'd see it in our toilets, sinks, and bath tubs, knowing it is in our food as well. It would last a couple days and be gone. We purchased a 10' x 10' x 30" kiddie pool for the grandchildren, set it up, filled it, and the water color was disgusting. It was almost the color of tea. We drained the pool, washed it out, and purchased a small filter that attaches to the garden hose. Refilled the pool again and the water was again discolored, but not as bad. Drained the pool again and put it away until we could resolve the water issue. We didn't need a water softener, nor did we want the purchase and upkeep expense for those types of systems. We did research online and found that iSpring filter units kept popping up as one of the top three best rated whole house filters. They're competitively priced and installation looked straight forward. We found the unit that we believed best suited our needs and purchased the model WGB32B unit off desertcart. This unit came with three filters; 5 micron particulate and two carbon filters. It arrived in a few days, and after reading the instructions I decided to install it myself. Our house has CPVC water piping so that made things easier. A trip to the hardware store for $50 worth of pipe and fittings and we were ready to be "plumbers". I first mounted the manifold unit (minus the filter housings) securely to the wall next to the main water supply line. Don't skimp on secure mounting as this unit is fairly heavy (maybe 40 lbs dry), even with out being full of water. I laid out the piping and fittings in the configuration I'd draw up before starting, cut the piping after some measuring, and "dry fit" (not glued, only hand fastened) everything together. After some adjustments, I shut off the water main, drained the pressure, and as much water that would drain. I cut into the CPVC main line at a predetermined place, drained residual water, dried the piping off, and started installing the piping and fittings, gluing them together starting at the main water pipe and working my way around the filter piping system. Once together, I allowed the glue to cure for an hour. While waiting for the glue to cure, I installed the cartridge filters into the housings and installed them onto the manifold, snugging them with the included wrench. After an hour, time for the leak test. I had all faucets in the house open. I slowly cracked open the main water inlet valve and slowly closed each faucet in the house. I could hear water filling the cartridges as the air was being pushed out of the system. Once the air was purged, and all faucets closed, the system came up to full house pressure. No leaks! I closed the filter bypass valve and we opened the closest faucet to the iSpring system and allowed water to flow for 10 minutes as instructed in the directions to flush out any carbon particles (didn't notice any visual carbon particles). Checked for leaks again. All good! We ran water in each faucet to flush the house system for about 15 minutes. Checked for leaks AGAIN. All good. Still not leaks. A couple installation notes: 1) For the threaded connections on either end of the manifold, I used 12 wraps of Teflon pipe tape AND a coat of good pipe sealant on top of the tape. The instructions said this could be a leak point, so I took no chances. I carefully tightened the adaptors into the ends of the manifold. I did not "bottom them out", but was a few ticks tighter than "snug". The manifold is a type of heavy plastic. I was using PVC fittings, but if you're using metal, be careful. Over tightening could crack the manifold. 2) As stated above, use heavy hardware to fasten the unit to the wall. I used a 2" x 10" board screwed into the wall studs with nine #9 x 3" deck screws, then lag bolted the manifold to the the board. The heavier the better. Do not use wall anchors in drywall! Do not use small screws such as drywall screws! If you have to, build a mounting bracket. 3) I installed a low point drain on my system. When it comes filter changing time, I wanted to be able to close the inlet and outlet filter valves, open the bypass valve, drain the pressure and and much water out of the manifold as possible. I can also use this as a low point drain for the house system if that's ever needed. I encourage you to do this as well. 4) I did not install union fittings in my system. This would allow removal of piping without the need to cut the pipe. If I had anything that I'd change, that would be it. I trusted my threaded sealant and gluing, but any leaks and I'd been cutting CPVC pipe out to fix the leak(s). We've only had our iSpring system up and running for one day, but we could tell a difference immediately. The water in our white porcelain toilets is actually CLEAR. It'll be interesting to see how long the particulate filter lasts in the conditions we experience with our city water. I expect 6 months with our city water condition. We shall see. I registered the iSpring system online. I received an email from Sean within an hour thanking me for the purchase and telling me to contact him with any questions I might have about the system in the future. So far, we couldn't be happier with the iSpring system. I am confident we made the right choice and look forward to not worrying about the water we use and consume.
Review: iSpring is really your only option - Product: iSpring WGB32B 3 Stage whole house filter. Date installed: June, 2022 First Filter change: May, 2023 (note house is barely used from Nov to May, seasonal log cabin) Upstate NY, well water Filters: Sediment filter => GAC+KDF filter => CTO Carbon filter Professional plumber install - paid $800, well worth it, they have the tools, they have the skills, they have the patience, well, most of the time. To do it over again: would 100% get the Spin-down filter to lessen load on sediment filter. May still do this but may not have room. Nick, if you're reading this and seeing the pics, what do you think? We research every major purchase, whole house filter was a major need. Built a log cabin on a small lake in the Adirondack park in upstate NY. Well drilled about 200'. Water is potable, tested several times, but there was some flakey silver particles and other sediment in the toilette and clogging up the screens. Water tasted just fine but needed to get rid of this sediment. We looked at several companies and settled with iSpring for the sheer quality of their product and the amazing customer support. I dealt with Nick in the beginning of the purchase process and he guided me to the right product and the right filter combinations. Nick is incredibly knowledgeable, patient and understand customer service and a good dude. Was going to give it go to install it myself as there are good videos out there but went the professional plumber route and glad I did. We included a bunch of shut-off valves with a bypass and plumber put in a faucet to relieve the pressure when you change the filters (great idea). I wish he had put a pressure valve before the filter system and afterwards to see if there's pressure drop. We had one small issue which was one of the cannisters was damaged in transport (threads). Called iSpring, luckily Nick picked up, and he sent me replacement right away. Installed with no leaks, no issues. You will notice what the sediment filter is picking up which is amazing that was going through the house and we were drinking it. Water is clear, no sediment in toilette bowl or the faucet screens and taste amazing - neighbors come here now to fill their water bottles. We changed the filters after 11 months (6 months of heavy use). Sediment filter was replaced (obviously after seeing the pics), KDF filter was fine, carbon filter replaced but looked okay too (see pics). We finished our basement over the winter and the unit is now enclosed. Note: not easy removing the housing to change the filters, you will need two of those wrenches for sure. They're heavy when full of water so have a bucket underneath. When re-installing, don't overtighten and make sure your gasket is good and apply a bit of silicone to it before spinning it back on. Make this purchase, you will be amazed and even more amazed by the excellent support you get - that's what really did it for us as iSpring stands out in this area. Thanks Nick and the entire team there.

## 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 |
|---------------|-------|
| ASIN | B01M1197LW |
| Best Sellers Rank | #11,394 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #9 in Whole House Water Treatment Systems |
| Brand | iSpring |
| Brand Name | iSpring |
| Capacity | 55.03 liters |
| Customer Reviews | 4.7 out of 5 stars 2,232 Reviews |
| Global Trade Identification Number | 00662425080250 |
| Included Components | 1 Whole House CTO Carbon Block |
| Installation Type | Whole House |
| Item Dimensions L x W x H | 5.98"L x 5.98"W x 22.01"H |
| Item Highlight | Reduces Chlorine, Taste, Odor, and More, CTO Carbon Block, Fits iSpring WGB32B & WHO32B Series Whole House Water Filters |
| Item Type Name | Whole House CTO Carbon Block |
| Manufacturer | iSpring Water Systems |
| Material | Carbon Block |
| Material Type | Carbon Block |
| Maximum Flow Rate | 15 gpm |
| Model Name | High Capacity 20” x 4.5” Water Filter |
| Model Number | 1 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Other Special Features of the Product | Chlorine Reduction, NSF certified |
| Part Number | FC25B |
| Power Source | Ac |
| Product Dimensions | 5.98"L x 5.98"W x 22.01"H |
| Purification Method | Activated Carbon, Carbon Block |
| Special Feature | Chlorine Reduction , NSF certified |
| Supported Water TDS Level Maximum (PPM) | 1000 |
| UPC | 662425080250 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 125 °F |

## Product Details

- **Brand:** iSpring
- **Capacity:** 55.03 liters
- **Included Components:** 1 Whole House CTO Carbon Block
- **Installation Type:** Whole House
- **Material:** Carbon Block
- **Model Name:** High Capacity 20” x 4.5” Water Filter
- **Power Source:** Ac
- **Product Dimensions:** 5.98"L x 5.98"W x 22.01"H
- **Purification Method:** Activated Carbon, Carbon Block
- **Special Feature:** Chlorine Reduction, NSF certified

## Images

![FC25B - Image 1](https://m.media-amazon.com/images/I/61y2R3tF6qL.jpg)
![FC25B - Image 2](https://m.media-amazon.com/images/I/61-1+LcWMaL.jpg)
![FC25B - Image 3](https://m.media-amazon.com/images/I/61zzN4ZcYgL.jpg)
![FC25B - Image 4](https://m.media-amazon.com/images/I/81PGKY30RtL.jpg)
![FC25B - Image 5](https://m.media-amazon.com/images/I/91SG0ADdtdL.jpg)

## Available Options

This product comes in different **Set** options.

## 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

## Customer Reviews

### ⭐⭐⭐⭐⭐ WGB32B iSpring Whole House Water Filtration System
*by B***R on June 24, 2021*

We live in a small town that has experienced frequent periods of discolored water for decades. We'd see it in our toilets, sinks, and bath tubs, knowing it is in our food as well. It would last a couple days and be gone. We purchased a 10' x 10' x 30" kiddie pool for the grandchildren, set it up, filled it, and the water color was disgusting. It was almost the color of tea. We drained the pool, washed it out, and purchased a small filter that attaches to the garden hose. Refilled the pool again and the water was again discolored, but not as bad. Drained the pool again and put it away until we could resolve the water issue. We didn't need a water softener, nor did we want the purchase and upkeep expense for those types of systems. We did research online and found that iSpring filter units kept popping up as one of the top three best rated whole house filters. They're competitively priced and installation looked straight forward. We found the unit that we believed best suited our needs and purchased the model WGB32B unit off Amazon. This unit came with three filters; 5 micron particulate and two carbon filters. It arrived in a few days, and after reading the instructions I decided to install it myself. Our house has CPVC water piping so that made things easier. A trip to the hardware store for $50 worth of pipe and fittings and we were ready to be "plumbers". I first mounted the manifold unit (minus the filter housings) securely to the wall next to the main water supply line. Don't skimp on secure mounting as this unit is fairly heavy (maybe 40 lbs dry), even with out being full of water. I laid out the piping and fittings in the configuration I'd draw up before starting, cut the piping after some measuring, and "dry fit" (not glued, only hand fastened) everything together. After some adjustments, I shut off the water main, drained the pressure, and as much water that would drain. I cut into the CPVC main line at a predetermined place, drained residual water, dried the piping off, and started installing the piping and fittings, gluing them together starting at the main water pipe and working my way around the filter piping system. Once together, I allowed the glue to cure for an hour. While waiting for the glue to cure, I installed the cartridge filters into the housings and installed them onto the manifold, snugging them with the included wrench. After an hour, time for the leak test. I had all faucets in the house open. I slowly cracked open the main water inlet valve and slowly closed each faucet in the house. I could hear water filling the cartridges as the air was being pushed out of the system. Once the air was purged, and all faucets closed, the system came up to full house pressure. No leaks! I closed the filter bypass valve and we opened the closest faucet to the iSpring system and allowed water to flow for 10 minutes as instructed in the directions to flush out any carbon particles (didn't notice any visual carbon particles). Checked for leaks again. All good! We ran water in each faucet to flush the house system for about 15 minutes. Checked for leaks AGAIN. All good. Still not leaks. A couple installation notes: 1) For the threaded connections on either end of the manifold, I used 12 wraps of Teflon pipe tape AND a coat of good pipe sealant on top of the tape. The instructions said this could be a leak point, so I took no chances. I carefully tightened the adaptors into the ends of the manifold. I did not "bottom them out", but was a few ticks tighter than "snug". The manifold is a type of heavy plastic. I was using PVC fittings, but if you're using metal, be careful. Over tightening could crack the manifold. 2) As stated above, use heavy hardware to fasten the unit to the wall. I used a 2" x 10" board screwed into the wall studs with nine #9 x 3" deck screws, then lag bolted the manifold to the the board. The heavier the better. Do not use wall anchors in drywall! Do not use small screws such as drywall screws! If you have to, build a mounting bracket. 3) I installed a low point drain on my system. When it comes filter changing time, I wanted to be able to close the inlet and outlet filter valves, open the bypass valve, drain the pressure and and much water out of the manifold as possible. I can also use this as a low point drain for the house system if that's ever needed. I encourage you to do this as well. 4) I did not install union fittings in my system. This would allow removal of piping without the need to cut the pipe. If I had anything that I'd change, that would be it. I trusted my threaded sealant and gluing, but any leaks and I'd been cutting CPVC pipe out to fix the leak(s). We've only had our iSpring system up and running for one day, but we could tell a difference immediately. The water in our white porcelain toilets is actually CLEAR. It'll be interesting to see how long the particulate filter lasts in the conditions we experience with our city water. I expect 6 months with our city water condition. We shall see. I registered the iSpring system online. I received an email from Sean within an hour thanking me for the purchase and telling me to contact him with any questions I might have about the system in the future. So far, we couldn't be happier with the iSpring system. I am confident we made the right choice and look forward to not worrying about the water we use and consume.

### ⭐⭐⭐⭐⭐ iSpring is really your only option
*by L***T on June 7, 2023*

Product: iSpring WGB32B 3 Stage whole house filter. Date installed: June, 2022 First Filter change: May, 2023 (note house is barely used from Nov to May, seasonal log cabin) Upstate NY, well water Filters: Sediment filter => GAC+KDF filter => CTO Carbon filter Professional plumber install - paid $800, well worth it, they have the tools, they have the skills, they have the patience, well, most of the time. To do it over again: would 100% get the Spin-down filter to lessen load on sediment filter. May still do this but may not have room. Nick, if you're reading this and seeing the pics, what do you think? We research every major purchase, whole house filter was a major need. Built a log cabin on a small lake in the Adirondack park in upstate NY. Well drilled about 200'. Water is potable, tested several times, but there was some flakey silver particles and other sediment in the toilette and clogging up the screens. Water tasted just fine but needed to get rid of this sediment. We looked at several companies and settled with iSpring for the sheer quality of their product and the amazing customer support. I dealt with Nick in the beginning of the purchase process and he guided me to the right product and the right filter combinations. Nick is incredibly knowledgeable, patient and understand customer service and a good dude. Was going to give it go to install it myself as there are good videos out there but went the professional plumber route and glad I did. We included a bunch of shut-off valves with a bypass and plumber put in a faucet to relieve the pressure when you change the filters (great idea). I wish he had put a pressure valve before the filter system and afterwards to see if there's pressure drop. We had one small issue which was one of the cannisters was damaged in transport (threads). Called iSpring, luckily Nick picked up, and he sent me replacement right away. Installed with no leaks, no issues. You will notice what the sediment filter is picking up which is amazing that was going through the house and we were drinking it. Water is clear, no sediment in toilette bowl or the faucet screens and taste amazing - neighbors come here now to fill their water bottles. We changed the filters after 11 months (6 months of heavy use). Sediment filter was replaced (obviously after seeing the pics), KDF filter was fine, carbon filter replaced but looked okay too (see pics). We finished our basement over the winter and the unit is now enclosed. Note: not easy removing the housing to change the filters, you will need two of those wrenches for sure. They're heavy when full of water so have a bucket underneath. When re-installing, don't overtighten and make sure your gasket is good and apply a bit of silicone to it before spinning it back on. Make this purchase, you will be amazed and even more amazed by the excellent support you get - that's what really did it for us as iSpring stands out in this area. Thanks Nick and the entire team there.

### ⭐⭐⭐⭐⭐ Finally a water filter that really removes Iron
*by I***N on July 6, 2026*

This filter works great! We live in a farm and our water comes from a Well. Sadly the amount of Iron in our water is extremely high and we are always fighting with the brownish color and the terrible metal odor. We were looking for an affordable but effective way to control this issue and after many trials, this filter has been the most effective. It removes the smell completely, and I can finally wash clothes in my house because the water is clean and does not stain my clothes. On top of that, we choose to buy 12 at once to always have it on hand and that makes the price even more affordable. Great product!

## 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 Tunisia*
*Store origin: TN*
*Last updated: 2026-09-13*