---
product_id: 160640677
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: "A$183"
currency: AUD
in_stock: true
reviews_count: 5
category: "I Spring"
url: https://www.desertcart.com.au/products/160640677-ispring-f2wgb21b-whole-house-4-5x10-water-filtration-high-capacity
store_origin: AU
region: Australia
---

# Coconut shell carbon CTO filter 50,000 gal capacity NSF/ANSI 42 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:** A$183
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your home’s water game with pure, powerful filtration.

## 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?** A$183 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/160640677-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

- • **Certified Clean & Safe:** Meets NSF/ANSI 42 & FDA standards for trusted water quality.
- • **Ultra-Long Filter Life:** Filters up to 50,000 gallons—less hassle, more pure water.
- • **Seamless Whole-House Fit:** Standard 10" size fits most systems, ensuring fresh water at every faucet.
- • **Powerful CTO Carbon Block:** High-density coconut shell carbon removes 99% chlorine, odors, and harmful organic compounds.
- • **Advanced Multi-Layer Sediment Capture:** 5-micron polypropylene filter traps dirt, rust, and scale before they reach your taps.

## Overview

The iSpring F2WGB21B is a premium whole-house water filter pack featuring a 5-micron sediment filter and a high-capacity coconut shell CTO carbon block filter. Certified to NSF/ANSI 42 and FDA standards, it effectively removes sediment, chlorine, odors, and organic contaminants, delivering up to 50,000 gallons of clean water. Designed for easy replacement and broad compatibility, it ensures fresh, safe water throughout your home while protecting plumbing and appliances.

## Description

Free delivery and returns on all eligible orders. Shop iSpring F2WGB21B Whole House 4.5"x10" Water Filtration High Capacity Sediment and CTO Carbon Block Water Filter Replacement Cartridge Pack Set, Model: WGB21B.

Review: The iSpring whole house filter is extremely effective in filtering water, specifically well water in southern Alberta. Changing filters was simple and quick. Although it was helpful that the person that changed the filter was the one that installed the system. For my part, it was ordering the system and filters and communicating with Francis with iSpring. Francis provided exceptional service and gave me helpful and professional advice on more than one occasion. Much appreciated! Thank you again. The attached "after" photo shows how effective the filter is!
Review: Excelentes filtros para mi cisterna cumplen con su funcion

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07HYB2TZ6 |
| Best Sellers Rank | 632,741 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 777 in Water Filter Cartridges |
| Brand | iSpring |
| Capacity | 50000 gallons |
| Colour | White |
| Customer Reviews | 4.7 4.7 out of 5 stars (366) |
| Date First Available | 2 Oct. 2018 |
| Item Weight | 1.36 kg |
| Material | Sediment and CTO |
| Model Number | F2WGB21B |
| Product Dimensions | 25.4 x 11.43 x 11.43 cm; 1.36 kg |

## Product Details

- **External testing certification:** ANSI, NSF
- **Item weight:** 1.36 Kilograms
- **Material:** Sediment and CTO
- **Product dimensions:** 25.5D x 11.5W x 22H centimetres

## 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/71zu8AK7ycL.jpg)
![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 2](https://m.media-amazon.com/images/I/61r2wwAsaGL.jpg)
![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 3](https://m.media-amazon.com/images/I/61K1gpvYm6L.jpg)
![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 4](https://m.media-amazon.com/images/I/71xCSTo-T-L.jpg)

## Available Options

This product comes in different **Material Type** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by E***L on 9 April 2025*

The iSpring whole house filter is extremely effective in filtering water, specifically well water in southern Alberta. Changing filters was simple and quick. Although it was helpful that the person that changed the filter was the one that installed the system. For my part, it was ordering the system and filters and communicating with Francis with iSpring. Francis provided exceptional service and gave me helpful and professional advice on more than one occasion. Much appreciated! Thank you again. The attached "after" photo shows how effective the filter is!

### ⭐⭐⭐⭐⭐ Review
*by S***. on 14 January 2026*

Excelentes filtros para mi cisterna cumplen con su funcion

### ⭐⭐⭐⭐⭐ Review
*by S***R on 6 January 2026*

I’ve been using these filters for years with great results. Always fit perfectly, they do a great job of filtering with an odor free result. The flow rate/psi differential stays at ~8 to 10 psi until they need changing out. They last a long time. They never come apart and are simple to replace.

## 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 Australia*
*Store origin: AU*
*Last updated: 2026-03-18*