---
product_id: 517933845
title: "iSpring FD25B Deionized Water Filter Replacement for WGB22BD, 4.5x20 in"
brand: "ispring"
price: "HK$1454"
currency: HKD
in_stock: true
reviews_count: 9
category: "I Spring"
url: https://www.desertcart.hk/products/517933845-ispring-fd25b-deionized-water-filter-replacement-for-wgb22bd-4-5x20
store_origin: HK
region: Hong Kong
---

# 1200 gal DI water capacity Tool-free quick connectors Rolling cart for mobility iSpring FD25B Deionized Water Filter Replacement for WGB22BD, 4.5x20 in

**Brand:** ispring
**Price:** HK$1454
**Availability:** ✅ In Stock

## Summary

> 💦 Elevate your car wash game—spotless, scratch-free, and effortlessly professional.

## Quick Answers

- **What is this?** iSpring FD25B Deionized Water Filter Replacement for WGB22BD, 4.5x20 in by ispring
- **How much does it cost?** HK$1454 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/517933845-ispring-fd25b-deionized-water-filter-replacement-for-wgb22bd-4-5x20)

## 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

- • **Maximized Cleaning Power:** Pure DI water boosts soap efficiency to 100%, leaving zero residue and a professional-grade shine.
- • **Spotless on Every Surface:** Perfect for ceramic coatings, wraps, and waxed finishes—no spots, no streaks, just brilliance.
- • **Flawless Finish Every Time:** 100% deionized water eliminates micro-scratches and swirl marks for showroom-quality paint protection.
- • **Effortless Mobility & Setup:** Heavy-duty rolling cart and tool-free installation mean you’re ready to wash anywhere, anytime.
- • **Built to Last with Local Support:** 1-year warranty plus lifetime U.S.-based technical support ensures your system runs flawlessly.

## Overview

The iSpring WGB22BD Spotless Water System delivers 1200 gallons of 100% deionized water to protect your vehicle’s paint and coatings by preventing mineral deposits and micro-scratches. Featuring a no-bypass design, tool-free quick connectors, and a heavy-duty rolling cart, it offers fast, efficient, and mobile car washing. Ideal for coated cars and equipment, it maximizes soap performance and extends equipment lifespan. Backed by a 1-year warranty and lifetime U.S. support, it’s the ultimate DIY solution for professional-grade, spot-free rinses.

## Description

iSpring FD25B Deionized Water Filter for Spotless Car Wash System, Fits WGB22BD Deionized Water System for Car Wash, 4.5” x 20”

Review: No watermarks - Previously, after each car wash, I had to spend extra time wiping the windows and wheels to remove stubborn water stains and marks. With this Aishipulin water purification system, these steps are no longer necessary. The deionized water washes the glass until it's crystal clear, free of stains and mineral deposits; the wheels don't need scrubbing and remain sparkling clean. I also use it to clean the chrome exhaust pipes, leaving them shiny and free of any hazy residue. You can first use regular water to pre-wash the wheels, then switch to purified water for a final rinse. The mobile cart moves flexibly around the wheels, and the included hose is long enough to ensure every corner of the vehicle is thoroughly cleaned. This system has halved my car wash time, and the glass and metal parts on my car look brand new.
Review: An excellent product for vehicle and window washing - I purchased the portable system with the bypass valve ( important) to be able to hand wash my new vehicles myself, as well as some of my 12 foot windows without spotting. I tested my house water before connecting the filter ( about 127 ppm), and was pleasantly surprised to see a zero ppm from the outlet. I have it hooked up to a pressure washer and highly recommend installing a digital flow meter and an adjustable valve inline to keep the flow at under 2 gpm through the media. I am very pleased with the results and have achieved spotless results on my vehicles. One last suggestion: I found that lifting the entire assembly on a work bench greatly aids the installation of the 2 media canisters onto their bases.

## Features

- Deionized Water Filter for Spotless Results: iSpring FD25B deionized water filter produces filtered water with zero or near zero TDS (total dissolved solids), providing an excellent last step for rinsing your cars, RVs, boats, motorcycles, windows, and more, giving them a shining, bright, and spotless touch
- Standard Size Compatibility: Our filter set fits any standard water filter housing that requires 20" x 4.5" cartridges. Each cartridge is individually wrapped to ensure that the filter stays fresh. Please unwrap the cartridges before installation
- Built to Last with Extended Filter Life: Your filter changing schedule will be based on your water usage and the contamination level of your source water. We recommend changing your filters when you notice a dramatic increase in the TDS value (30 ppm). It lasts up to 120 rinses for cars or filters up to 600 gallons of water
- Customer Service Support: We offer both technical assistance and customer service support by phone or email out of our headquarters in Atlanta, GA. Our knowledgeable team is available to help you find a filtration solution that best solves your specific water concerns or to help with any after-sale support you may need
- Important Usage Note: This deionized water filter is not designed for drinking water applications of any kind. TDS in your source water will impact the performance of this filter
- Residential Use Only: This system is NOT intended for commercial use and is designed specifically for residential applications

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BPK1BH1G |
| Best Sellers Rank | #41,782 in Automotive ( See Top 100 in Automotive ) #46 in Car Washing Applicators |
| Brand | iSpring |
| Brand Name | iSpring |
| Customer Reviews | 4.5 out of 5 stars 154 Reviews |
| Included Components | Filter |
| Item Dimensions D x W x H | 4.5"D x 4.5"W x 20"H |
| Item Highlight | DI Resin Filter for Spotless Car Wash System, Spot Free Rinse, Fits WGB22BD Series Deionized Water Systems Item Highlight DI Resin Filter for Spotless Car Wash System, Spot Free Rinse, Fits WGB22BD Series Deionized Water Systems See more |
| Manufacturer | iSpring Water Systems |
| Manufacturer Part Number | FD25B |
| Material | Resin |
| Material Type | Resin |
| Model Number | FD25B |
| Number of Items | 1 |
| Product Benefits | Removes Impurities |
| Product Dimensions | 4.5"D x 4.5"W x 20"H |
| Set Name | Replacement Filter |
| UPC | 810004173163 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** iSpring
- **Material:** Resin
- **Product Benefits:** Removes Impurities
- **Product Dimensions:** 4.5"D x 4.5"W x 20"H

## Images

![iSpring FD25B Deionized Water Filter Replacement for WGB22BD, 4.5x20 in - Image 1](https://m.media-amazon.com/images/I/61uzMtAWlJL.jpg)
![iSpring FD25B Deionized Water Filter Replacement for WGB22BD, 4.5x20 in - Image 2](https://m.media-amazon.com/images/I/71y1djyol-L.jpg)
![iSpring FD25B Deionized Water Filter Replacement for WGB22BD, 4.5x20 in - Image 3](https://m.media-amazon.com/images/I/81+7t-PaWCL.jpg)
![iSpring FD25B Deionized Water Filter Replacement for WGB22BD, 4.5x20 in - Image 4](https://m.media-amazon.com/images/I/81PFWkTfiOL.jpg)
![iSpring FD25B Deionized Water Filter Replacement for WGB22BD, 4.5x20 in - Image 5](https://m.media-amazon.com/images/I/81WU+KgWYgL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ No watermarks
*by J***I on May 31, 2026*

Previously, after each car wash, I had to spend extra time wiping the windows and wheels to remove stubborn water stains and marks. With this Aishipulin water purification system, these steps are no longer necessary. The deionized water washes the glass until it's crystal clear, free of stains and mineral deposits; the wheels don't need scrubbing and remain sparkling clean. I also use it to clean the chrome exhaust pipes, leaving them shiny and free of any hazy residue. You can first use regular water to pre-wash the wheels, then switch to purified water for a final rinse. The mobile cart moves flexibly around the wheels, and the included hose is long enough to ensure every corner of the vehicle is thoroughly cleaned. This system has halved my car wash time, and the glass and metal parts on my car look brand new.

### ⭐⭐⭐⭐⭐ An excellent product for vehicle and window washing
*by A***. on June 22, 2026*

I purchased the portable system with the bypass valve ( important) to be able to hand wash my new vehicles myself, as well as some of my 12 foot windows without spotting. I tested my house water before connecting the filter ( about 127 ppm), and was pleasantly surprised to see a zero ppm from the outlet. I have it hooked up to a pressure washer and highly recommend installing a digital flow meter and an adjustable valve inline to keep the flow at under 2 gpm through the media. I am very pleased with the results and have achieved spotless results on my vehicles. One last suggestion: I found that lifting the entire assembly on a work bench greatly aids the installation of the 2 media canisters onto their bases.

### ⭐⭐⭐⭐⭐ Car washing made easy!
*by A***R on May 18, 2026*

DEFINITELY WORTH EVERY PENNY! I have never left a review but this is SOOO worth it! We live in an area with hard water and washing our cars has been miserable bc we could never get it spot free with all the hard water spots that seemed to almost stain our paint. We got this and it’s a legit game changer!!! It has cut our drying time down bc the water just falls off.

## Frequently Bought Together

- iSpring FD25B Deionized Water Filter for Spotless Car Wash System, Fits WGB22BD Deionized Water System for Car Wash, 4.5” x 20”
- HoneForest Water Quality Tester, Accurate and Reliable, TDS Meter, EC Meter & Temperature Meter 3 in 1, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums, etc.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.hk/products/517933845-ispring-fd25b-deionized-water-filter-replacement-for-wgb22bd-4-5x20](https://www.desertcart.hk/products/517933845-ispring-fd25b-deionized-water-filter-replacement-for-wgb22bd-4-5x20)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-10-11*