---
product_id: 375991376
title: "WGB21B 2-Stage Whole House Water Filtration System, with 10\" x 4.5\" Sediment CTO(Chlorine, Taste, and Odor) Filter, 1\" Inlet/Outlet"
brand: "ispring"
price: "$978.72"
currency: USD
in_stock: true
reviews_count: 5
category: "I Spring"
url: https://www.desertcart.us/products/375991376-wgb21b-2-stage-whole-house-water-filtration-system-with-10
store_origin: US
region: United States of America
---

# 99% contaminant removal 15 GPM max flow rate 2-stage filtration tech WGB21B 2-Stage Whole House Water Filtration System, with 10" x 4.5" Sediment CTO(Chlorine, Taste, and Odor) Filter, 1" Inlet/Outlet

**Brand:** ispring
**Price:** $978.72
**Availability:** ✅ In Stock

## Summary

> 🚿 Elevate your home’s water game—because clean water is the new luxury!

## Quick Answers

- **What is this?** WGB21B 2-Stage Whole House Water Filtration System, with 10" x 4.5" Sediment CTO(Chlorine, Taste, and Odor) Filter, 1" Inlet/Outlet by ispring
- **How much does it cost?** $978.72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/375991376-wgb21b-2-stage-whole-house-water-filtration-system-with-10)

## 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

- • **Whole Home Purity:** Experience crystal-clear water from every tap, eliminating chlorine, lead, and heavy metals for a healthier lifestyle.
- • **Dual-Stage Defense:** Advanced KDF + GAC carbon filter combined with CTO carbon block ensures superior removal of foul odors and harmful contaminants.
- • **High Capacity Performance:** Filters up to 50,000 gallons, delivering long-lasting freshness without frequent replacements—perfect for busy households.
- • **Optimal Flow, Zero Compromise:** Maintains a robust 15 gallons per minute flow rate, so you never sacrifice water pressure for purity.
- • **Effortless Installation & Maintenance:** Freestanding design with easy cartridge swaps keeps your water pristine without hassle or downtime.

## Overview

The iSpring WGB21B is a powerful 2-stage whole house water filtration system featuring KDF + GAC and CTO carbon block filters that remove up to 99% of contaminants including PFAS, chlorine, lead, and heavy metals. With a high capacity of 50,000 gallons and a maximum flow rate of 15 GPM, it ensures fresh, odor-free water throughout your home. Designed for easy freestanding installation and maintenance, it’s the smart choice for professionals demanding clean, great-tasting water at every faucet.

## Description

2-Stage Whole Housed Water Filtration System

Review: Like most people, we purchased this to clean up our local water. We live in a water district that gets it's water from a series of wells. It's mostly acceptable water, but every once and a while we would see a noticeable color change in the water for a day or two - a yellowish tint. The water district said there was no issue, but we were concerned what quality of water we were actually getting. We also have an on demand hot water heater. They are more prone to develop scale from poor water supply. The filter system installation was straightforward and easy. It is bigger than you might imagine, so measure to make sure that you'll have the wall space required. We immediately noticed a difference in our water quality. The clarity of the water in our bath was noticeable. It almost felt like we had installed a water softener. The replacement filters are easy to replace. Watch for them on sale to save yourself a few dollars. High quality and a noticeable difference!
Review: Filtraggio acqua del pozzo

## Features

- [High Capacity Filters] The iSpring WGB21B-KS is a 2-stage whole house water filtration system featuring a 1st-stage KDF plus GAC carbon filter (FG15B-KS) and a 2nd-stage CTO carbon block filter (FC15B). These filters work together to effectively remove up to 99% of contaminants, including PFAS, chlorine, lead, mercury, and various heavy metals. Say goodbye to turbidity, cloudiness, bad taste, and foul odors (like hydrogen sulfide that smells like rotten eggs) for fresher, cleaner water throughout your home.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01F9A4UVU |
| Best Sellers Rank | 765,854 in DIY & Tools ( See Top 100 in DIY & Tools ) 516 in Under-Sink Filters |
| Brand | iSpring |
| Colour | Blue |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,625) |
| Date First Available | 6 May 2016 |
| Item Weight | 9.89 kg |
| Model Number | WGB21B |
| Product Dimensions | 66.04 x 48.26 x 27.94 cm; 9.89 kg |
| Special Features | Chlorreduzierung |

## Product Details

- **Brand:** iSpring
- **Capacity:** 50000 gallons
- **Included components:** Cartridge
- **Installation type:** Freestanding
- **Material:** Polypropylene
- **Package information:** Flasche
- **Power source:** Manual Operation
- **Product dimensions:** 45L x 20.5W x 47H centimetres
- **Purification method:** Activated Carbon, Sedimentation
- **Special feature:** Chlorreduzierung

## Images

![WGB21B 2-Stage Whole House Water Filtration System, with 10" x 4.5" Sediment CTO(Chlorine, Taste, and Odor) Filter, 1" Inlet/Outlet - Image 1](https://m.media-amazon.com/images/I/71g-oqbSfGL.jpg)

## Questions & Answers

**Q: Is it difficult to install by myself?**
A: The system comes with standard-sized connections, a detailed manual, and video tutorials. Many users can complete installation on their own, but a plumber’s assistance can make the process even easier and quicker.

**Q: Is there anything special I should know when installing this system?**
A: For best results, apply plumber’s tape and tighten the fittings evenly during installation. This ensures a secure setup and helps prevent seepage, allowing the system to perform reliably.

**Q: How long does the housing usually last?**
A: Made with high-strength materials, the housing is built for long-term use under normal water pressure. Adding a pressure regulator can further extend its service life.

**Q: Can I install this system outdoors?**
A: Install indoors in a well-ventilated area, shielded from wind and rain, and away from direct sunlight and heat. For outdoor installation, ensure insulation against frost and sun, and waterproofing for both the unit and the pipes.

**Q: Does this system remove TDS?**
A: The System is designed to reduce sediment, chlorine, and certain chemicals, effectively improving water quality and taste. It does not reduce TDS. If lowering TDS is your goal, we recommend pairing it with an iSpring RO system.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by D***N on 3 January 2026*

Like most people, we purchased this to clean up our local water. We live in a water district that gets it's water from a series of wells. It's mostly acceptable water, but every once and a while we would see a noticeable color change in the water for a day or two - a yellowish tint. The water district said there was no issue, but we were concerned what quality of water we were actually getting. We also have an on demand hot water heater. They are more prone to develop scale from poor water supply. The filter system installation was straightforward and easy. It is bigger than you might imagine, so measure to make sure that you'll have the wall space required. We immediately noticed a difference in our water quality. The clarity of the water in our bath was noticeable. It almost felt like we had installed a water softener. The replacement filters are easy to replace. Watch for them on sale to save yourself a few dollars. High quality and a noticeable difference!

### ⭐⭐⭐⭐⭐ Review
*by F***O on 25 July 2024*

Filtraggio acqua del pozzo

### ⭐⭐⭐⭐⭐ Review
*by P***N on 16 October 2021*

Waited to review until installed for over a month. My system is on well water with a fine clay sediment issue. So far everything is working well. I rebuilt my entire old system. The first filter is the iSprings WSP50 spin down which I can switch out the screen size From 50micron to 1000m & 3 more sizes in between. The spin down cleaning feature works great and is very convenient.Next is my old 22" bag filter (20m). Then the iSpring WGB21B 2filter unit ( Again you have various choices of filters to use depending on your situation) I put guages at each end of all these filters and have only a1 PSI drop after a month of use. I called Don at iSprings with a few questions and received excellent service. He even called back a few days later to check up. All 3 units from iSpring are well made and easy to install if you have some DIY skills. When placing the copper reducer on the plastic filter housing use at least 6-8 wraps of high end plumbers tape. Carefully tighten fiitting to the last thread; this should not leak then. Try to solder as much as possible before screwing into the plastic filter ends. If unavoidable wrap wet cloth aroud joints of copper and plastic before soldering.

## Frequently Bought Together

- 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 F2WGB21B Whole House 4.5"x10" Water Filtration High Capacity Sediment and CTO Carbon Block Water Filter Replacement Cartridge Pack Set, Model: WGB21B
- 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 United States of America*
*Store origin: US*
*Last updated: 2026-05-20*