---
product_id: 44881142
title: "Express Water – Polyphosphate Anti-Scale Water Replacement Filter – Whole House Replacement Water Filter – PHO High Capacity Water Filter – 4.5” x 20” inch"
brand: "express water"
price: "NT$6158"
currency: TWD
in_stock: true
url: https://www.desertcart.tw/products/44881142-express-water-polyphosphate-anti-scale-water-replacement-filter-whole-house
store_origin: TW
region: Taiwan
---

# Whole house coverage Easy cartridge replacement 3-stage filtration tech Express Water – Polyphosphate Anti-Scale Water Replacement Filter – Whole House Replacement Water Filter – PHO High Capacity Water Filter – 4.5” x 20” inch

**Brand:** express water
**Price:** NT$6158
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your home’s water game—because clean water is the new luxury.

## Quick Answers

- **What is this?** Express Water – Polyphosphate Anti-Scale Water Replacement Filter – Whole House Replacement Water Filter – PHO High Capacity Water Filter – 4.5” x 20” inch by express water
- **How much does it cost?** NT$6158 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/44881142-express-water-polyphosphate-anti-scale-water-replacement-filter-whole-house)

## Best For

- express water enthusiasts

## Why This Product

- Trusted express water brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Filter Swaps:** Quick-change cartridges designed for zero-hassle maintenance—stay refreshed without downtime.
- • **Advanced Anti-Scale Defense:** Polyphosphate technology prevents scale buildup, extending your plumbing’s lifespan.
- • **Certified Quality Assurance:** ANSI and NSF certifications guarantee top-tier filtration performance you can trust.
- • **Universal Fit, Zero Guesswork:** Fits all standard 4.5” x 20” housings so you never worry about compatibility.
- • **Seamless Whole Home Protection:** Enjoy crisp, clean water from every faucet without sacrificing pressure.

## Overview

Express Water’s PHO high-capacity whole house replacement filter features a 3-stage polyphosphate anti-scale system housed in a durable 4.5” x 20” carbon fiber cartridge. Certified by ANSI and NSF, it prevents scale buildup and reduces impurities while maintaining water pressure, fitting all standard housings for easy, no-fuss replacement.

## Description

Full description not available

## Features

- Whole House Water Filter System: Express Water’s 3 Stage whole house water filtration system and easy to replace water filter replacement cartridges
- Easy to Replace Water Filter Cartridges: All Express Water whole house water filter replacement cartridges are designed for quick and easy replacement to keep your system up and running
- Universal Standard Size Water Filters: Take the guessing out of replacing your water filters. Express Water’s whole house replacement filters fit all standard 4.5” x 20” whole home water filter system housings.
- High Quality Whole Home Water Filter: Express Water’s PHO replacement filter means no more worrying about your home’s water. With specially engineered high flow filtration you can have crisp clean drinking water from any faucet with no drop in your water pressure.
- Express Water Replacement Filters: Express Water has all your whole house filtration needs covered. Choose from a variety of filter options, all designed to meet the highest filtration standards

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Carbon Fiber |
| Product Dimensions | 4.5"D x 4.5"W x 20"H |
| Item Weight | 3.6 Pounds |
| External Testing Certification | ANSI, NSF |
| Product Benefits | Prevents scale formation and reduces impurities |
| Brand | EXPRESS WATER |
| UPC | 355292590778 641990965681 |
| Global Trade Identification Number | 00641990965681 |
| Unit Count | 1.0 Count |
| Number of Items | 1 |
| Manufacturer | Express Water |
| Part Number | FLTWH2045P |
| Item Weight | 3.6 pounds |
| Item model number | FLTWH2045P |
| Is Discontinued By Manufacturer | No |
| Size | 1 Count (Pack of 1) |
| Color | White |
| Style | Anti-Scale |
| Item Package Quantity | 1 |
| Included Components | Antiscale whole house replacement filter |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Carbon Fiber
- **Product Dimensions:** 4.5"D x 4.5"W x 20"H
- **Item Weight:** 3.6 Pounds
- **External Testing Certification:** ANSI, NSF
- **Product Benefits:** Prevents scale formation and reduces impurities

## Images

![Express Water – Polyphosphate Anti-Scale Water Replacement Filter – Whole House Replacement Water Filter – PHO High Capacity Water Filter – 4.5” x 20” inch - Image 1](https://m.media-amazon.com/images/I/51O0h8AhnVL.jpg)

## Available Options

This product comes in different **Unit Count, Style** options.

## Questions & Answers

**Q: What would you say is the average life of this cartridge? How many months and gallons? Thanks**
A: Family of 4 here but I seem to get 4-5 months on my city water before starting to notice buildup in the toilets and showers again

**Q: Should I install this filter after my water softener?**
A: I would install it before softener and after preasure reducing valve.   Side note, of you are on a septic system I would be hesitant to install a softener as the majority of them add alot of salt and water to the system.  I'm on a septic and had scale problems so we added the Express Water antiscale system which has three filters; sediment, charcoal,  & polyphosphate.  It made a huge difference, didn't totally solve the problem, maybe 90/95% better.  Good luck

**Q: Will this filter work in my Aquaboom 20" housing?**
A: Yes

**Q: Will this help with scale in my rain shower head? I have the standard whole house water system plus a water softner system from a local vendor.**
A: It will help but it will not it eliminate completely.

## Frequently Bought Together

- EXPRESS WATER FLTWH2045P Antiscale Whole House Replacement Filter, 1 Count (Pack of 1), White
- Express Water – 2 Pack Water Filter Activated Carbon Block Replacement Filter – ACB Large Capacity Water Filter – Whole House Filtration – 5 Micron Water Filter – 4.5” x 20” inch
- Express Water – 2 Pack Sediment Replacement Filter – Whole House Replacement Water Filter – SED High Capacity Water Filter – 5 Micron Water Filter – 4.5” x 20” inch

---

## 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.tw/products/44881142-express-water-polyphosphate-anti-scale-water-replacement-filter-whole-house](https://www.desertcart.tw/products/44881142-express-water-polyphosphate-anti-scale-water-replacement-filter-whole-house)

---

*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-01-23*