---
product_id: 223866737
title: "Waterdrop AP431 Replacement Cartridge for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS, Prevent Scale Accumulation and Protect Water Heaters, Pack of 1"
brand: "waterdrop"
price: "₨1291"
currency: SCR
in_stock: true
url: https://www.desertcart.sc/products/223866737-waterdrop-ap431-replacement-cartridge-for-aqua-pure-ap431-hot-water
store_origin: SC
region: Seychelles
---

# 10 GPM fast flow rate 6-month extended lifespan Premium polyphosphates prevent scale Waterdrop AP431 Replacement Cartridge for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS, Prevent Scale Accumulation and Protect Water Heaters, Pack of 1

**Brand:** waterdrop
**Price:** ₨1291
**Availability:** ✅ In Stock

## Summary

> 💧 Keep your flow flawless and your appliances happy—scale doesn’t stand a chance!

## Quick Answers

- **What is this?** Waterdrop AP431 Replacement Cartridge for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS, Prevent Scale Accumulation and Protect Water Heaters, Pack of 1 by waterdrop
- **How much does it cost?** ₨1291 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/223866737-waterdrop-ap431-replacement-cartridge-for-aqua-pure-ap431-hot-water)

## 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

- • **Easy Compatibility:** Seamlessly replaces 3M Aqua-Pure AP430, AP430SS, and SF18-S models—plug and play simplicity.
- • **Consistent Water Flow:** Delivers a steady 10 gallons per minute, maintaining optimal water pressure for your daily needs.
- • **Leak-Proof Durability:** Crafted with BPA-free, food-grade plastic housing for a secure, anti-burst fit—no leaks, no worries.
- • **Scale-Free Performance:** Protects your water heaters and appliances from damaging limescale buildup, ensuring peak efficiency.
- • **Long-Lasting Protection:** Designed for up to 6 months of reliable scale inhibition, adapting to your water conditions for maximum value.

## Overview

The Waterdrop AP431 Replacement Cartridge uses advanced polyphosphate technology to inhibit scale buildup, protecting water heaters and appliances. It fits original Aqua-Pure models perfectly, ensures leak-free operation with BPA-free housing, supports a fast 10 GPM flow rate, and offers up to 6 months of effective use, making it an essential upgrade for maintaining efficient water systems.

## Description

Waterdrop AP431 Replacement Cartridge for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS, Prevent Scale Accumulation and Protect Water Heaters, Pack of 1

## 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

## Product Details

- **Material:** food-grade polyphosphates
- **Product Dimensions:** 2.56"D x 2.56"W x 9.45"H
- **Item Weight:** 16 ounces
- **External Testing Certification:** RoHS
- **Product Benefits:** Prevent Scale Accumulation

## Images

![Waterdrop AP431 Replacement Cartridge for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS, Prevent Scale Accumulation and Protect Water Heaters, Pack of 1 - Image 1](https://m.media-amazon.com/images/I/51dCVJWyKNS.jpg)
![Waterdrop AP431 Replacement Cartridge for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS, Prevent Scale Accumulation and Protect Water Heaters, Pack of 1 - Image 2](https://m.media-amazon.com/images/I/61O24rzQc1S.jpg)
![Waterdrop AP431 Replacement Cartridge for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS, Prevent Scale Accumulation and Protect Water Heaters, Pack of 1 - Image 3](https://m.media-amazon.com/images/I/61zasSYJ17S.jpg)
![Waterdrop AP431 Replacement Cartridge for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS, Prevent Scale Accumulation and Protect Water Heaters, Pack of 1 - Image 4](https://m.media-amazon.com/images/I/714Ha81XzsL.jpg)
![Waterdrop AP431 Replacement Cartridge for Aqua-Pure AP431 Hot Water Scale Inhibitor for AP430SS, Prevent Scale Accumulation and Protect Water Heaters, Pack of 1 - Image 5](https://m.media-amazon.com/images/I/61iTUDRw+RS.jpg)

## 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 Seychelles*
*Store origin: SC*
*Last updated: 2026-01-22*