---
product_id: 382196489
title: "Waterdrop AP431 Water Filter Cartridge, Replacement for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS (Pack of 1)"
brand: "waterdrop"
price: "€ 59.86"
currency: EUR
in_stock: true
reviews_count: 5
category: "Waterdrop"
url: https://www.desertcart.nl/products/382196489-waterdrop-ap431-water-filter-cartridge-replacement-for-aqua-pure-ap431
store_origin: NL
region: Netherlands
---

# 10 GPM fast flow rate BPA-free, anti-burst durable housing Premium polyphosphates for scale protection Waterdrop AP431 Water Filter Cartridge, Replacement for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS (Pack of 1)

**Brand:** waterdrop
**Price:** € 59.86
**Availability:** ✅ In Stock

## Summary

> 💧 Scale-free water, stress-free life — upgrade your flow today!

## Quick Answers

- **What is this?** Waterdrop AP431 Water Filter Cartridge, Replacement for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS (Pack of 1) by waterdrop
- **How much does it cost?** € 59.86 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/382196489-waterdrop-ap431-water-filter-cartridge-replacement-for-aqua-pure-ap431)

## Best For

- waterdrop enthusiasts

## Why This Product

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

## Key Features

- • **Consistent High Flow:** Delivers up to 10 gallons per minute for uninterrupted water supply
- • **Half-Year Performance:** Optimized lifespan with recommended replacement every 6 months
- • **Universal Compatibility:** Direct replacement for 3M Aqua-Pure AP431, AP430SS, and similar models
- • **Seamless Fit & Leak-Free:** Precision-engineered BPA-free cartridge housing ensures no leaks or bursts
- • **Keep Appliances Running Longer:** Protects dishwashers, heaters & more from corrosion and limescale buildup

## Overview

The Waterdrop AP431 Water Filter Cartridge is a high-performance scale inhibitor designed to protect your water-using appliances from corrosion and limescale buildup. Featuring premium polyphosphates and a BPA-free, anti-burst housing, it delivers a stable flow rate of up to 10 gallons per minute. Compatible with multiple 3M Aqua-Pure models, this cartridge ensures optimal appliance efficiency and longevity with a recommended replacement every 6 months.

## Description

With this scale inhibitor cartridge, your water pipes, dishwasher, water heater, washing machine, and other water-using appliances are protected from pipeline corrosion, blockage, and other anomalies caused by scaling. This way, they will work optimally for longer periods.The integrity of pipelines is threatened by rust and blockages caused by hard water. This, in turn, lessens the lifespan of water heaters and other appliances. The greater the amount of limescale, the less efficient your water heater becomes.

Review: Super easy to install and prolongs the life of the heater and restores water flow.
Review: Great! Thank you

## Features

- 【Protects your water-using appliances】: With the premium polyphosphates in this scale inhibitor cartridge, you can worry less about the accumulation of corrosion and limescale, which may block your pipelines. This efficient filter media will keep your water-using appliances—like dishwashers, heaters, etc.—working optimally and for the longest time possible.
- 【Anti-burst properties】: The cartridge housing is made from food-grade BPA-free plastic and fits the original brand perfectly, without any leaks. With its state-of-the-art technology, the scale inhibitor cartridge ensures a safe water use experience.
- 【Fast water flow】: With a continuous flow of filtered water at a stable pressure and a flow rate of up to 10 gpm, this scale inhibitor cartridge is designed to provide water for your domestic requirements.
- 【Extended lifespan】: Enjoy clean water by replacing your cartridge every 6 months, which will vary based on water conditions. Throughout this time frame, you will get maximum performance.
- 【Replacement models】: Replacement for 3M Aqua-Pure AP430, AP430SS, and SF18-S Scale Inhibition System. Interchangeable with 3M Aqua-Pure AP431, HF8-S, KleenWater KW431

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B089W9TSJG |
| Best Sellers Rank | #119,434 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #363 in Replacement Water Filters |
| Brand | Waterdrop |
| Customer Reviews | 4.6 4.6 out of 5 stars (304) |
| Date First Available | 16 October 2020 |
| Item Weight | 454 g |
| Material | Plastic |
| Model Number | WD-AP431 |
| Product Dimensions | 6.5 x 6.5 x 24 cm; 453.59 g |

## Product Details

- **External testing certification:** RoHS
- **Item weight:** 454 g
- **Material:** Plastic
- **Product benefits:** Prevent Scale Accumulation
- **Product dimensions:** 6.5D x 6.5W x 24H centimeters

## Images

![Waterdrop AP431 Water Filter Cartridge, Replacement for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/51Kg229IUHL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by R***C on 25 November 2025*

Super easy to install and prolongs the life of the heater and restores water flow.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 30 August 2025*

Great! Thank you

### ⭐⭐⭐⭐⭐ Review
*by W***D on 1 June 2024*

It fits perfectly without leaking on my water heater and it seems to be working just fine. Good price and so far good performance.

## Frequently Bought Together

- Waterdrop AP431 Replacement Cartridge for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS, Prevent Scale Accumulation and Protect Water Heaters, Pack of 1
- Waterdrop AP431 AP430SS Whole House Scale Inhibitor Filter, Heater Softener System, Prevent Scale Build Up On Hot Water Heaters, Pipes and Boilers
- Waterdrop AP431 Replacement Cartridge for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS, Prevent Scale Accumulation and Protect Water Heaters, Pack of 3

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-26*