---
product_id: 416618249
title: "Total Water Hardness Test for Pool, Aquarium, and Drinking Water, and Improving Water Softener Efficiency, Hard Water Test Kit"
brand: "colorkim"
price: "¥10803"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/416618249-total-water-hardness-test-for-pool-aquarium-and-drinking-water
store_origin: JP
region: Japan
---

# Titrimetric accuracy 100+ drop tests per kit Results in seconds Total Water Hardness Test for Pool, Aquarium, and Drinking Water, and Improving Water Softener Efficiency, Hard Water Test Kit

**Brand:** colorkim
**Price:** ¥10803
**Availability:** ✅ In Stock

## Summary

> 💧 Know your water, own your wellness.

## Quick Answers

- **What is this?** Total Water Hardness Test for Pool, Aquarium, and Drinking Water, and Improving Water Softener Efficiency, Hard Water Test Kit by colorkim
- **How much does it cost?** ¥10803 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/416618249-total-water-hardness-test-for-pool-aquarium-and-drinking-water)

## Best For

- colorkim enthusiasts

## Why This Product

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

## Key Features

- • **Multipurpose Mastery:** Perfect for pools, aquariums, drinking water, and optimizing water softener efficiency—one kit, endless uses.
- • **Compact & User-Friendly:** No extra tools needed—just water, drops, and your smartphone-ready test container for on-the-go convenience.
- • **Economical Testing Power:** 100 drops per container mean you can monitor water hardness regularly without breaking the bank.
- • **Scientifically Trusted Method:** Uses the reliable titrimetric method for total water hardness, ensuring professional-grade accuracy.
- • **Instant Clarity, Zero Guesswork:** Drop-and-see color change delivers precise water hardness results in seconds—no charts, no hassle.

## Overview

The AQUAX Total Water Hardness Test Kit offers a fast, reliable, and easy-to-use solution for measuring water hardness across pools, aquariums, and drinking water. Utilizing a titrimetric method with a simple drop-and-see color change, it delivers accurate results within seconds. Each kit includes 100 drops, enabling multiple tests to optimize water softener efficiency and protect your plumbing and appliances from hard water damage.

## Description

Total Water Hardness Test for Pool, Aquarium, and Drinking Water, and Improving Water Softener Efficiency, Hard Water Test Kit

## Features

- Easy, simple to use and reliable water hardness test: AQUAX total water hardness test kit uses just two components: a water hardness indicator solution and a water test container (no microspoon or additional container), making the kit an accurate and easy-to-use test to determine water quality in pools, spas, aquarium, and industries where water hardness is important.
- Accurate results in seconds: Unlike paper test trips that can be difficult to read and match against color charts, AQUAX hard water test kit uses the easy drop-and-see testing method where the color changes in a single drop to reflect the water hardness, thus providing reliable results within few seconds. Easy-to-read instructions are included with each package.
- One hard water test kit, multiple water hardness tests: Each container contains 100 drops, enough to perform multiple tests, depending on the level of water hardness.
- Accurate and reliable test method: AQUAX uses the Titrimetric method to determine total water hardness. The available Calcium Bicarbonate in the water could be calculated as well (read the instruction at the back side of box). To convert the hardness from German unit to Grains per Gallon use the following formula: 1 dH (German Hardness) = 1,04 GPG (Grains per Gallon)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | ColorKiM |
| Part Number | 12000.003 |
| Item Weight | 5.3 ounces |
| Product Dimensions | 1.6 x 2.75 x 3.93 inches |
| Item model number | 12000.003 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Number Of Pieces | 2 |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![Total Water Hardness Test for Pool, Aquarium, and Drinking Water, and Improving Water Softener Efficiency, Hard Water Test Kit - Image 1](https://m.media-amazon.com/images/I/7190pyv5B1L.jpg)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-11*