---
product_id: 48699655
title: "FA15"
brand: "ispring"
price: "¥9075"
currency: JPY
in_stock: null
reviews_count: 13
category: "I Spring"
url: https://www.desertcart.jp/products/48699655-fa15
store_origin: JP
region: Japan
---

# 3-layer filtration tech Mineral balls & calcite infusion Industry standard 10-inch size FA15

**Brand:** ispring
**Price:** ¥9075
**Availability:** ❌ Out of Stock

## Summary

> 💧 Elevate your hydration game with spring-fresh purity, every sip counts!

## Quick Answers

- **What is this?** FA15 by ispring
- **How much does it cost?** ¥9075 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/48699655-fa15)

## Best For

- ispring enthusiasts

## Why This Product

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

## Key Features

- • **TDS Reduction Mastery:** Effectively lowers Total Dissolved Solids for crisp, fresh spring-like taste
- • **Long-Lasting Freshness:** Up to 12 months of premium water quality, perfect for hard water areas
- • **Effortless Installation:** No tools, no mess—quick connect design makes filter swaps a breeze
- • **Universal Compatibility:** Fits most RO systems with industry-standard 10-inch quick connect design
- • **Precision 3-Layer Filtration:** Advanced mineral balls, calcite & corosex layers for balanced alkaline water

## Overview

The iSpring FA15 is a 10-inch inline quick connect alkaline water filter cartridge designed for reverse osmosis systems. Featuring a 3-layer filtration system with mineral balls, calcite, and corosex, it reduces TDS and enhances water taste with balanced alkalinity. Compatible with most RO setups, it offers easy installation and up to 12 months of reliable performance, ideal for improving water quality in hard water regions.

## Description

iSpring FA15 10-inch Inline Quick Connect 3-Layer Alkaline Replacement Water Filter Cartridge with Mineral Balls, Calcite, and Corosex for Reverse Osmosis RO System, White : desertcart.co.uk: Automotive

Review: Excellent so far - Perfect but little on pricey side to other options. I wanted something to add to my 6 stage RO system which comes out at zero for my reef tanks. As I now live in a very hard water area with no reservoirs the water smells and is awful up this way. Added this to the side to which I divert the water for drinking. Comes out at around TDS 82 perfect and even better with a slice of fruit.
Review: Goodness you can taste. - This is our second time using the iSpring & there is a noticeable taste profile difference which highlights a difference in quality between a cheaper brand. If it didn't make a difference we would buy a cheaper brand. Lasted the stipulated time, water still tasted good. Just replaced it as it had hit the 12 month period. Obviously different water quality will impact its longevity. Water is back to fresh spring tasting perfection. Installation is easy. turn tank off, open faucet, disconnect old filter insert new one, turn tank back on, run water through it, test it with TDS meter, enjoy. No mess, no fuss straightforward. Soft in the mouth like water from a fresh spring on a long hike. Refreshing like in Psalm 23.

## Features

- Industry standard size that fits most RO systems

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00FBLGD1S |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 30,859 in DIY & Tools ( See Top 100 in DIY & Tools ) 35 in Replacement Under-Sink Water Filters |
| Colour | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,703) |
| Date First Available | 6 Mar. 2014 |
| Included Components | water filters |
| Installation method | Under Sink |
| Item Package Quantity | 1 |
| Item Weight | 28.3 g |
| Item model number | c8b999bb-ef40-4965-bd04-b8b06a0346fc |
| Manufacturer | iSpring |
| Material | Mineral balls, Calcite, Corosex |
| Number of Pieces | 1 |
| Part Number | FA15 |
| Pattern | Filter |
| Product Dimensions | 30.48 x 7.62 x 7.62 cm; 28.35 g |
| Size | 1 Count (Pack of 1) |
| Special Features | Reduce TDS |
| Style | AK Water Filter Replacement |

## Product Details

- **External testing certification:** ANSI
- **Item weight:** 1 Ounces
- **Material:** Mineral balls, Calcite, Corosex
- **Product benefits:** Balances pH and restores essential minerals like calcium, magnesium, and potassium
- **Product dimensions:** 35D x 27W x 10H centimetres

## Images

![FA15 - Image 1](https://m.media-amazon.com/images/I/51RfqOPD5ZL.jpg)
![FA15 - Image 2](https://m.media-amazon.com/images/I/71gCSqgaO1L.jpg)
![FA15 - Image 3](https://m.media-amazon.com/images/I/61NqcWAFXHL.jpg)
![FA15 - Image 4](https://m.media-amazon.com/images/I/61NkyhJmczL.jpg)
![FA15 - Image 5](https://m.media-amazon.com/images/I/71yuc2Lt0IL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent so far
*by G***. on 13 January 2025*

Perfect but little on pricey side to other options. I wanted something to add to my 6 stage RO system which comes out at zero for my reef tanks. As I now live in a very hard water area with no reservoirs the water smells and is awful up this way. Added this to the side to which I divert the water for drinking. Comes out at around TDS 82 perfect and even better with a slice of fruit.

### ⭐⭐⭐⭐⭐ Goodness you can taste.
*by S***N on 4 March 2026*

This is our second time using the iSpring & there is a noticeable taste profile difference which highlights a difference in quality between a cheaper brand. If it didn't make a difference we would buy a cheaper brand. Lasted the stipulated time, water still tasted good. Just replaced it as it had hit the 12 month period. Obviously different water quality will impact its longevity. Water is back to fresh spring tasting perfection. Installation is easy. turn tank off, open faucet, disconnect old filter insert new one, turn tank back on, run water through it, test it with TDS meter, enjoy. No mess, no fuss straightforward. Soft in the mouth like water from a fresh spring on a long hike. Refreshing like in Psalm 23.

### ⭐⭐⭐⭐⭐ Remineralised at last!
*by S***E on 3 April 2025*

I've had my 5-stage iSpring for several years and have been pleased with the taste. While I think we're not meant rely on our drinking water to get our minerals, sometimes I get questions of concern from guests. Word to the wise: best not to even mention that your water filter is RO. Sometimes people think it's distilled water. Ugh. Anyway, I bought and attached this sixth alkaline stage and did a before and after taste test. The 'before' was just as good as ever. The 'after', now going through the filter, has a slight brightness to it which, while not a huge difference, is to my taste buds preferable.

## Frequently Bought Together

- iSpring FA15 Alkaline Inline Water Filter Cartridge, 10” x 2” with 1/4” Quick Connect, NSF Certified, Add-on for RO Systems, Balances pH & Restores Minerals, 3-Layer Replacement Filter
- iSpring F7-GAC NSF Certified 1-Year Replacement Filter Cartridge Pack, 7-Count for Standard 5-Stage Reverse Osmosis (RO) Systems
- iSpring Greatwell Reverse Osmosis Membrane 75 GPD 11.75” X 1.75”, Replacement Fits Standard Under Sink RO Drinking Water Filtration System, MC7

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**Shop now:** [https://www.desertcart.jp/products/48699655-fa15](https://www.desertcart.jp/products/48699655-fa15)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-10*