---
product_id: 274756668
title: "AQUA CREST AP431 Cartridge, Compatible with Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS"
brand: "aqua crest"
price: "€ 60.33"
currency: EUR
in_stock: true
reviews_count: 5
category: "Aqua Crest"
url: https://www.desertcart.fi/products/274756668-aqua-crest-ap431-cartridge-compatible-with-aqua-pure-ap431-hot
store_origin: FI
region: Finland
---

# 6-month replacement cycle 10 GPM flow rate BPA-free durable housing AQUA CREST AP431 Cartridge, Compatible with Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS

**Brand:** aqua crest
**Price:** € 60.33
**Availability:** ✅ In Stock

## Summary

> 💧 Protect your flow, power your home — scale-free living starts here!

## Quick Answers

- **What is this?** AQUA CREST AP431 Cartridge, Compatible with Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS by aqua crest
- **How much does it cost?** € 60.33 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/274756668-aqua-crest-ap431-cartridge-compatible-with-aqua-pure-ap431-hot)

## Best For

- aqua crest enthusiasts

## Why This Product

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

## Key Features

- • **Seamless Compatibility:** Direct replacement for 3M Aqua-Pure AP430 series and interchangeable with multiple leading models.
- • **Whole-House Water Flow:** Supports up to 10 gallons per minute, delivering consistent, filtered water for your entire home.
- • **Effortless Scale Defense:** Premium polyphosphates actively prevent limescale buildup, protecting your appliances from corrosion and blockages.
- • **Precision Fit, Zero Leaks:** Engineered BPA-free plastic housing ensures a secure, leak-proof installation every time.
- • **Extended Appliance Lifespan:** Keeps heaters, dishwashers, and pipes running longer by reducing scale-related wear and tear.

## Overview

The AQUA CREST AP431 Cartridge is a high-performance scale inhibitor designed to protect household water appliances by preventing limescale and corrosion. Featuring a BPA-free durable housing and a flow rate of up to 10 GPM, it ensures leak-free, whole-house water filtration. Compatible with major 3M Aqua-Pure models, it extends appliance lifespan and requires replacement every 6 months for optimal performance.

## Description

AQUACREST: Quality Water Quality LifeScale inhibitor is dedicated to protecting your water appliances, like washing machines, water heaters, water pipes,dishwashers, etc. It can effectively inhibit pipeline corrosion and blockage,and extend the service life of your water appliances.Hard water can rust and block the pipeline,subsequently greatly reducing the service life of water appliances, especially water heaters. With accumulating scales, the heat efficiency of the water heater decreases over time. However, AQU-AP431 scale inhibitor can inhibit the limescale and corrosion from building up. Our inhibitor is dedicated to protecting and extending the life of your water appliances.

Review: Perfect fit as AP431. Works great! Water quality is good.
Review: Repeat order. Decent price, fast delivery.

## Features

- Protects water appliances : AQUACREST AP431 scale inhibitor cartridge adopts premium polyphosphates that can effectively prevent limescale and corrosion from building up, therefore, the corrosion and blockage of pipelines can be inhibited. The excellent filter material can protect and extend the service life of your water appliances, like heaters, dishwashers, etc.
- Prevents bursting : Food-grade BPA-free plastic housing adopts excellent strength with latest advanced technology. Accurate design promises a precise fit without water leakage. AQUACREST AP431 scale inhibitor ensures you a safe water usage experience.
- Inhibits limescale : Scale inhibitor provides you with stable and continuous filtered water without an obvious pressure drop. The flow rate is up to 10 gpm so it can meet the water demand for the whole house.
- Long-lasting service life : It's recommended that you replace the inhibitor every 6 months for effective scale inhibition, which will vary based on water conditions.
- Compatible 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 | B06W55PCQ5 |
| Brand | AQUA CREST |
| Color | White |
| Customer Reviews | 4.7 4.7 out of 5 stars (523) |
| Date First Available | 11 May 2017 |
| Item Weight | 485 g |
| Material | Plastic |
| Model Number | AQU-WF65 |
| Product Dimensions | 5.84 x 5.84 x 23.37 cm; 485.34 g |
| Special Features | Filter |

## Product Details

- **External testing certification:** RoHS
- **Item weight:** 1.07 Pounds
- **Material:** Plastic
- **Product benefits:** Removes Dust
- **Product dimensions:** 6.6D x 6.5W x 23.6H centimeters

## Images

![AQUA CREST AP431 Cartridge, Compatible with Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS - Image 1](https://m.media-amazon.com/images/I/51dtXlR7UNL.jpg)
![AQUA CREST AP431 Cartridge, Compatible with Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS - Image 2](https://m.media-amazon.com/images/I/61TpKNL-GuL.jpg)
![AQUA CREST AP431 Cartridge, Compatible with Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS - Image 3](https://m.media-amazon.com/images/I/61XOb5dtNgL.jpg)
![AQUA CREST AP431 Cartridge, Compatible with Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS - Image 4](https://m.media-amazon.com/images/I/61tp1OBDdPL.jpg)
![AQUA CREST AP431 Cartridge, Compatible with Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS - Image 5](https://m.media-amazon.com/images/I/71PSgOBrkjL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by R***I on 12 October 2025*

Perfect fit as AP431. Works great! Water quality is good.

### ⭐⭐⭐⭐⭐ Review
*by N***Y on 3 November 2025*

Repeat order. Decent price, fast delivery.

### ⭐⭐⭐⭐⭐ Review
*by S***Y on 23 July 2025*

Works exactly like it should.

## Frequently Bought Together

- AQUA CREST AP431 Replacement for Aqua-Pure AP430SS, Whole House Scale Inhibitor Water Filter, Helps Prevent Scale Build Up On Hot Water Heaters and Boilers, Pack of 1
- AQUACREST AP431 Replacement Cartridge for Aqua-Pure AP430SS, Whole House Water Scale Inhibition System, Helps Prevent Scale Build Up On Hot Water Heaters and Boilers, Pack of 3
- AQUA CREST AP431 AP430SS Whole House Scale Inhibitor Inline Water System, Water Heater Softener System, Prevent Scale Build Up On Hot Water Heaters, Water Pipes and Boilers

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**Shop now:** [https://www.desertcart.fi/products/274756668-aqua-crest-ap431-cartridge-compatible-with-aqua-pure-ap431-hot](https://www.desertcart.fi/products/274756668-aqua-crest-ap431-cartridge-compatible-with-aqua-pure-ap431-hot)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-03*