---
product_id: 224733794
title: "iSpring F2WGB21B Whole House 4.5\"x10\" Water Filtration High Capacity Sediment and CTO Carbon Block Water Filter Replacement Cartridge Pack Set, Model: WGB21B"
brand: "ispring"
price: "412.76 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "I Spring"
url: https://www.desertcart.tn/products/224733794-ispring-f2wgb21b-whole-house-4-5x10-water-filtration-high-capacity
store_origin: TN
region: Tunisia
---

# Coconut shell carbon CTO 50,000 gal filter life NSF/ANSI certified safety iSpring F2WGB21B Whole House 4.5"x10" Water Filtration High Capacity Sediment and CTO Carbon Block Water Filter Replacement Cartridge Pack Set, Model: WGB21B

**Brand:** ispring
**Price:** 412.76 DT
**Availability:** ✅ In Stock

## Summary

> 🚿 Elevate Every Drop: Whole-House Water Purity That Works as Hard as You Do

## Quick Answers

- **What is this?** iSpring F2WGB21B Whole House 4.5"x10" Water Filtration High Capacity Sediment and CTO Carbon Block Water Filter Replacement Cartridge Pack Set, Model: WGB21B by ispring
- **How much does it cost?** 412.76 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/224733794-ispring-f2wgb21b-whole-house-4-5x10-water-filtration-high-capacity)

## 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

- • **Long-Lasting Performance:** Filters up to 50,000 gallons—replace every 3-6 months for peak water purity and appliance protection.
- • **Seamless Whole-House Fit:** Designed to fit standard 10" filtration systems, ensuring effortless upgrade and universal compatibility.
- • **Trusted Support & Warranty:** Backed by 30-day money-back, extended warranty, and lifetime tech support from iSpring’s Atlanta HQ.
- • **Unmatched Filtration Power:** Captures dirt, rust & sediment with premium 5-micron polypropylene filter for crystal-clear water.
- • **Chlorine & Contaminant Crusher:** Removes up to 99% chlorine plus herbicides & industrial solvents with activated coconut shell carbon block.

## Overview

The iSpring F2WGB21B is a high-capacity whole house water filter replacement pack featuring a 5-micron polypropylene sediment filter and a coconut shell carbon block CTO filter. Certified to NSF/ANSI standards, it removes sediment, chlorine, odors, and harmful organic compounds, delivering up to 50,000 gallons of clean water. Compatible with standard 10" filtration systems, it extends appliance life and protects plumbing, all backed by robust customer support and warranty.

## Description

desertcart.com: iSpring F2WGB21B Whole House 4.5"x10" Water Filtration High Capacity Sediment and CTO Carbon Block Water Filter Replacement Cartridge Pack Set, Model: WGB21B : Industrial & Scientific

Review: ISpring makes great water filters - I researched different whole house water filters for several weeks and ended up with I Spring. I saw several reviews stating that they were experiencing leaks and a couple reviews even said the main housing cracked during installation. in my opinion these are the best water filters out there in this price range. The main bodies; (what the water lines attach to and the filter canisters screw into), is indeed plastic... but it is very thick and substantial - I was quite impressed and very pleased when i got them. When you pick one up you instantly notice the weight ... these things are beefy! I would suggest putting 6 or 7 complete wraps of Teflon tape around the fitting that you screw in to the housing. In doing that, I have not had any leaks and the unit has been installed for 3 weeks. Also , you do not need to over tighten the fitting, I used a 10 in wrench to reduce leverage and just put reasonable force into it. The filters themselves also are quite beefy and appear to be capable of significant loading before you see a noticeable pressure drop. just this week I have noticed an improvement in the water taste and starting to notice a difference in the reduction of water spots on dishes after washing, etc. I think it will take a couple months for all the water pipes to clean out a bit before the real difference is apparent. I had a cheaper system about 5 years ago and ended up ripping it out about a year later because of leaks and constantly replacing the filters. Then this summer I decided to try a better system. I highly recommend this product and more importantly this manufacturer. On a side note, I also ordered a 4th stage which is not installed yet; (the flex line will be replaced with rigid copper once I get the 4th stage installed). It was the big blue 20" filter and it did not come with the mounting bracket ... my bad. I contacted ISpring and they told me that the bracket is not included with the one i ordered. But in the same breath they said that their customer satisfaction is most important and they are sending me one completely free of charge without me even asking. So just stop reading reviews and order their products and get your water quality increased !!!
Review: Totally Recommend! - I purchased this water filter because my plumber had installed it in his home, and totally thought it was worth it! In addition, I filled out the warranty, and Robert(from iSpring) emailed me back right away stating the 3yr warranty was in effect! He also told me to reach out if I ever had any questions! Good customer support is half the battle!

## Features

- [Premium Quality Material and Multi-Layer Density Tech] Complying strictly with FDA standard (CFR-Part 177) and tested by independent third party against NSF/ANSI standard((NSF/ANSI 42) for material safety and water quality, iSpring premium 5-micron polypropylene sediment filter (FP15B) captures dirt, sand, silt, dust, rust, and scale particles and extends the life of CTO carbon block filter. The polypropylene construction provides superior chemical resistance and is not prone to bacterial attack.
- [Highly Activated Carbon Block CTO Filter] Using high quality coconut shell carbon and highly compact fabrication tech, iSpring CTO filter(FC15B) knocks out cloudiness as well as bad tastes and odors, removes up to 99% of chlorine, and is highly effective on Organic Compounds like herbicides and industrial solvents and other contaminants like trihalomethanes.
- [Exceptional Filter Life] This filter pack can filter up to 50,000 gallons depending on the use and feed water quality. Replace the filters every 3-6 months to achieve optimal performance. Fine PP sediment filter and premium quality CTO filter not only bring clean and refreshing water to every faucet in your home, but also help prolong the lives of your water-using appliances and protect plumbing from sediment and scale buildup.
- [Great Compatibility] This filter pack consists of 1x 10"x4.5"Sediment Filter(FP15B) and 1x 10"x4.5" CTO filter(FC15B). Fits standard 10" whole house water filtration systems. Individually sealed for freshness.
- [Peace-of-mind Customer Support] Your risk-free shopping experience is backed by a 30-day money-back guarantee, extended manufacturer warranty, and lifetime tech support from iSpring in Atlanta, GA at (678) 261-7611.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07HYB2TZ6 |
| Best Sellers Rank | #3,178 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3 in Whole House Water Treatment Systems |
| Brand | iSpring |
| Brand Name | iSpring |
| Compatible Water Purifier Models | iSpring WGB21B |
| Customer Reviews | 4.6 out of 5 stars 4,268 Reviews |
| External Testing Certification | ANSI, NSF |
| Global Trade Identification Number | 00810004170223 |
| Included Components | 4.5" x 10" CTO Filter X1, 4.5" x 10" PP Sediment Filter X1 |
| Item Dimensions D x W x H | 9"D x 4.5"W x 10"H |
| Item Type Name | Whole House 4.5"x10" Water Filtration High Capacity Sediment and CTO Carbon Block Water Filter Replacement Cartridge Pack Set for WGB21B |
| Item Weight | 1.36 kg |
| Manufacturer | iSpring Water Systems |
| Manufacturer Part Number | F2WGB21B |
| Manufacturer Warranty Description | 30 day warranty |
| Material | Polypropylene, Coconut Shell Carbon |
| Material Type | Polypropylene, Coconut Shell Carbon |
| Model Number | iSpring-WGB21B |
| Number of Items | 2 |
| Product Benefits | Provides clean and refreshing water by removing impurities chlorine, prolongs appliance life, protects plumbing Product Benefits Provides clean and refreshing water by removing impurities chlorine, prolongs appliance life, protects plumbing See more |
| Product Dimensions | 9"D x 4.5"W x 10"H |
| Set Name | F2WGB21B - Chlorine Removal Filter Set |
| UPC | 810004170223 |
| Unit Count | 1 Count |

## Product Details

- **External Testing Certification:** ANSI, NSF
- **Item Weight:** 1.36 Kilograms
- **Material:** Polypropylene, Coconut Shell Carbon
- **Product Dimensions:** 9"D x 4.5"W x 10"H

## Images

![iSpring F2WGB21B Whole House 4.5"x10" Water Filtration High Capacity Sediment and CTO Carbon Block Water Filter Replacement Cartridge Pack Set, Model: WGB21B - Image 1](https://m.media-amazon.com/images/I/61Rn2dOh67L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ ISpring makes great water filters
*by J***N on October 10, 2019*

I researched different whole house water filters for several weeks and ended up with I Spring. I saw several reviews stating that they were experiencing leaks and a couple reviews even said the main housing cracked during installation. in my opinion these are the best water filters out there in this price range. The main bodies; (what the water lines attach to and the filter canisters screw into), is indeed plastic... but it is very thick and substantial - I was quite impressed and very pleased when i got them. When you pick one up you instantly notice the weight ... these things are beefy! I would suggest putting 6 or 7 complete wraps of Teflon tape around the fitting that you screw in to the housing. In doing that, I have not had any leaks and the unit has been installed for 3 weeks. Also , you do not need to over tighten the fitting, I used a 10 in wrench to reduce leverage and just put reasonable force into it. The filters themselves also are quite beefy and appear to be capable of significant loading before you see a noticeable pressure drop. just this week I have noticed an improvement in the water taste and starting to notice a difference in the reduction of water spots on dishes after washing, etc. I think it will take a couple months for all the water pipes to clean out a bit before the real difference is apparent. I had a cheaper system about 5 years ago and ended up ripping it out about a year later because of leaks and constantly replacing the filters. Then this summer I decided to try a better system. I highly recommend this product and more importantly this manufacturer. On a side note, I also ordered a 4th stage which is not installed yet; (the flex line will be replaced with rigid copper once I get the 4th stage installed). It was the big blue 20" filter and it did not come with the mounting bracket ... my bad. I contacted ISpring and they told me that the bracket is not included with the one i ordered. But in the same breath they said that their customer satisfaction is most important and they are sending me one completely free of charge without me even asking. So just stop reading reviews and order their products and get your water quality increased !!!

### ⭐⭐⭐⭐⭐ Totally Recommend!
*by C***D on September 1, 2026*

I purchased this water filter because my plumber had installed it in his home, and totally thought it was worth it! In addition, I filled out the warranty, and Robert(from iSpring) emailed me back right away stating the 3yr warranty was in effect! He also told me to reach out if I ever had any questions! Good customer support is half the battle!

### ⭐⭐⭐⭐⭐ Outstanding Product and Exceptional Support!
*by P***I on August 22, 2024*

I am absolutely thrilled with both the iSpring product and the outstanding customer support provided by Francis! After installing it by myself, I encountered a minor leak. Despite my best efforts, there was a slight water leak in three separate places. #1 is fixed with a slight tightening, but #2 (the other side) and #3 did not stop. I reached out to iSpring's support, and Francis stepped in to assist me. His response was not only prompt but incredibly detailed and helpful. Following his instructions, I applied O-ring grease, which stopped the leak at #3. Although it didn't completely stop the leak at #2, it did help reduce it. That is when Francis quickly arranged for replacement parts to be sent to me. He provided a tracking number and kept me updated throughout the process. The replacement arrived swiftly, and I am happy to report that the system is now working perfectly. The leak has been resolved, and the system is performing flawlessly. Whenever we experience heavy rain or a series of rainy days, the water in our city often turns brown for several hours, sometimes even longer. During these times, the city sends out water quality warning text messages. Residents in our subdivision are advised to flush their taps until the water runs clear again, as recommended by the city. After installing the iSpring filter, we had three days of rain, yet the water inside our house remained clear. However, the water in our garden, which is not filtered through the iSpring system, was as brown as usual. The product itself is top-notch, and Francis’s support was the cherry on top. His dedication to resolving my issue and his detailed instructions made a potentially stressful situation smooth and straightforward. Thank you iSpring and Francis for both their excellent products and their exceptional customer service.

## Frequently Bought Together

- iSpring F2WGB21B Whole House 4.5"x10" Water Filtration High Capacity Sediment and CTO Carbon Block Water Filter Replacement Cartridge Pack Set, Model: WGB21B
- iSpring WGB21B 2-Stage Whole House Water Filtration System, with 10" x 4.5" Sediment CTO(Chlorine, Taste, and Odor) Filter, 1" Inlet/Outlet
- iSpring FP15B Sediment Filter Replacement Cartridge for Whole House Water Filtration Systems, High Capacity 5-Micron Premium PP, 4.5" x 10", White

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-10-12*