---
product_id: 569792405
title: "TK-AS31-W Alkaline Ion Water Purifier, Compact, Removes 19 Substances, Organic Fluorine Compounds, Compatible with PFOS/PFOA Removal, Made in Japan, White"
brand: "panasonic"
price: "$739.22"
currency: USD
in_stock: true
reviews_count: 6
category: "Panasonic"
url: https://www.desertcart.us/products/569792405-tk-as31-w-alkaline-ion-water-purifier-compact-removes-19
store_origin: US
region: United States of America
---

# 1-year cartridge lifespan minimizes maintenance 3-electrode tech for precise ionization Removes 19 harmful substances including PFOS/PFOA TK-AS31-W Alkaline Ion Water Purifier, Compact, Removes 19 Substances, Organic Fluorine Compounds, Compatible with PFOS/PFOA Removal, Made in Japan, White

**Brand:** panasonic
**Price:** $739.22
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your hydration game with Japan’s compact powerhouse!

## Quick Answers

- **What is this?** TK-AS31-W Alkaline Ion Water Purifier, Compact, Removes 19 Substances, Organic Fluorine Compounds, Compatible with PFOS/PFOA Removal, Made in Japan, White by panasonic
- **How much does it cost?** $739.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/569792405-tk-as31-w-alkaline-ion-water-purifier-compact-removes-19)

## Best For

- panasonic enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Sleek Design:** Space-saving Panasonic model fits seamlessly on any countertop, blending style with function.
- • **Effortless Maintenance:** Long-lasting cartridge replacement cycle of approximately one year reduces hassle and ongoing costs.
- • **Precision Ionization Power:** Advanced 3-electrode system ensures optimal alkaline water quality for your gut health.
- • **Certified Medical-Grade Quality:** Backed by home medical device certification, guaranteeing trusted purification performance.
- • **Comprehensive Contaminant Removal:** Effectively filters out 19 harmful substances, including stubborn organic fluorine compounds and PFOS/PFOA.

## Overview

The Panasonic TK-AS31-W is a compact, countertop alkaline ion water purifier designed with a 3-electrode system to produce stomach-friendly ionized water. Certified as a home medical device, it removes 19 contaminants including PFOS/PFOA and organic fluorine compounds. Its cartridge lasts about one year, minimizing maintenance, and its sleek design fits perfectly in modern kitchens.

## Description

Compact Alkaline Ion Water Regulator Entry Model Certified product for home medical devices & 3 electrodes. The simplest design and compact model of Panasonic. Removes 19 substances from being removed thoroughly. Cartridge replacement estimates takes about 1 year to reduce hassle Makes alkaline ionized water that is good for your stomach intestine. Medical Device Certification Number: 304AKBZX00082000

Review: best water purifier - best water purifier for my espresso machine
Review: Bad quality, and the seller refuse to provide return label and force customer to pay return fees

## Features

- Certified product for home medical devices & 3 electrodes
- The simplest design and compact model of Panasonic
- Removes 19 substances from being removed thoroughly
- Cartridge replacement estimated takes approximately 1 year to reduce hassle
- Can make alkaline ionized water for your stomach

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BZ71MHT6 |
| Best Sellers Rank | #1,207,211 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,480 in Pitcher Water Filters #42,633 in Kitchen Small Appliances #99,733 in Kitchen & Bath Fixtures |
| Brand | Panasonic |
| Date First Available | March 30, 2023 |
| EU Spare Part Availability Duration | 1 Years |
| Installation Type | Countertop |
| Item Weight | 1.32 pounds |
| Item model number | TK-AS31-W |
| Manufacturer | パナソニック(Panasonic) |
| Model Name | TK AS31 W |
| Package Information | Dispenser |
| Power Source | Corded Electric |
| Product Dimensions | 3.39"L x 7.01"W x 1.03"H |
| Special Feature | Cartridge Replacement |
| Supported Water TDS Level Maximum (PPM) | 300 |
| Upper Temperature Rating | 50 Degrees Celsius |

## Product Details

- **Brand:** Panasonic
- **Included Components:** 1 water filter cartridge, pH test fluid, water conversion lever, fixture set
- **Installation Type:** Countertop
- **Item Weight:** 600 Grams
- **Material:** Polypropylene
- **Package Information:** Dispenser
- **Power Source:** Corded Electric
- **Product Dimensions:** 3.39"L x 7.01"W x 1.03"H
- **Purification Method:** Alkaline
- **Special Feature:** Cartridge Replacement

## Images

![TK-AS31-W Alkaline Ion Water Purifier, Compact, Removes 19 Substances, Organic Fluorine Compounds, Compatible with PFOS/PFOA Removal, Made in Japan, White - Image 1](https://m.media-amazon.com/images/I/51k3yUZ22pL.jpg)

## Available Options

This product comes in different **Pattern, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ best water purifier
*by J***N on December 19, 2023*

best water purifier for my espresso machine

### ⭐ Review
*by T***M on April 26, 2024*

Bad quality, and the seller refuse to provide return label and force customer to pay return fees

### ⭐⭐⭐⭐⭐ Review
*by 花***暮 on February 27, 2026*

自宅で1年ほど使い、とても良いので実家にも購入しました。 最初の投資が少し高いですが、コスパを考えるととても良いと思います。 最初にこちらを購入する前に、浄水ってそもそも、何をどうやって濾過したいのか？、PFAS？ペットボトルでお水買う？ペットボトルのマイクロプラスチックは？浄水器もプラスチック？ 濾過材の不織布は？等等、考え始めるとキリがなく堂々巡りになりましたが、ペットボトル買うよりエコだし、簡単だし、ゴミでないし。 安全性が見えにくいウォーターサーバーより、基準をクリアしてる水道水を、更にろ過したほうが確実なのでは？ ＆、これならアルカリイオン水作れるし、大量に使えるから、炊飯や全てに使える！ という訳で、こちらに決定。やはり大量に使えるので、口に入れるもの、ペットも含め、惜しみなく全てに使えるのがいいです。 自宅はステンレス管ですが、それでもこちらを通す前と後では、はっきり味の違いがわかりました、そんなに味覚鋭くないんですが、普通に違うなぁと。 そして、2台目を設置した実家は、古い＆多分銅管なのもあり、煮炊きするときなど、いやいや水道水を使ってましたが（置き型浄水器も使ってはやめての繰り返し）、こちらにしたら、かなり美味しくなりました。 炭酸水も心置きなく作れますし、アルカリイオン水も美味しいです。

## Frequently Bought Together

- Panasonic TK-AS31-W Alkaline Ion Water Purifier, Compact, Removes 19 Substances, Organic Fluorine Compounds, Compatible with PFOS/PFOA Removal, Made in Japan, White
- Essential Values Universal Descaler - Espresso Descaling Solution - Coffee Machine Cleaner - Critic Acid Tea Kettle, Urn, Water Distiller Cleaner
- VEVOR Water Distiller, 4L 1.05 Gallon Pure Water Purifier Filter for Home Countertop, 750W Distilled Water Maker, Stainless Steel Interior Distiller Water Making Machine to Make Clean Water, Silvery

---

## 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.us/products/569792405-tk-as31-w-alkaline-ion-water-purifier-compact-removes-19](https://www.desertcart.us/products/569792405-tk-as31-w-alkaline-ion-water-purifier-compact-removes-19)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-18*