---
product_id: 3591699
title: "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"
brand: "ispring"
price: "18030 Ft"
currency: HUF
in_stock: true
reviews_count: 13
category: "I Spring"
url: https://www.desertcart.hu/products/3591699-ispring-fa15-alkaline-inline-water-filter-cartridge-10-x-2
store_origin: HU
region: Hungary
---

# Balances pH & restores minerals 1/4” quick connect install 3-layer mineral filtration 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

**Brand:** ispring
**Price:** 18030 Ft
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your hydration game with mineral-balanced, pH-perfect water!

## Quick Answers

- **What is this?** 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 by ispring
- **How much does it cost?** 18030 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/3591699-ispring-fa15-alkaline-inline-water-filter-cartridge-10-x-2)

## 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

- • **pH Perfected:** Raises pH to neutralize acidity from standard RO systems, promoting better hydration
- • **Effortless Upgrade:** Universal compatibility with any under-sink RO system for seamless add-on
- • **Taste the Difference:** Enhances water taste with revitalized minerals for a crisp, refreshing sip every time
- • **Mineral-Rich Hydration:** Restores essential calcium, magnesium & potassium for balanced, healthy water
- • **Quick Connect Convenience:** Push-fit 1/4” quick connect design for fast, tool-free filter replacement

## Overview

The iSpring FA15 is a 10-inch inline alkaline water filter cartridge designed to enhance reverse osmosis systems by restoring vital minerals like calcium, magnesium, and potassium. Featuring a 3-layer filtration system and NSF certification, it raises water pH for balanced acidity and improved taste. Its universal compatibility and quick-connect fittings ensure hassle-free installation, making it the essential upgrade for millennial professionals seeking healthier, better-tasting water at home.

## Description

desertcart.com: 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 : Tools & Home Improvement

Review: It's perfect? 3 Tips provided. - Tip 1: Flow arrow is a clear engraving and easy to miss. Don't rely on the sticker label orientation in comparison to the video, which some say can be reversed. Tip 2: My TDS went from about 10-15 (iirc) to about 50-65 (My tap is 400TDS). Perfect for me. This TDS tastes great to me. EDIT: placing in front of tank, TDS dropped to 30-35. Not sure if this will cause scaling in the tank though. Tip 3: Took me about 1 minute to install. It's easy if you know how to release the quick connect. I did it in-line to the tank for now, but understanding there's maybe a few oz in the cartridge that will sit and overmineralize. I'll move it to before the tank if it bothers us as it does for some others. EDIT: I've heard of 3 different ways in the reviews to install this alkaline cartridge lol. The 3rd way is after tank but before polisher. Just different tradeoffs. No one has provided an argument for which is definitively best.
Review: Great remineralizer - This worked great but only after I flushed the system 3 times. I also changed the other 3 carbon and debris filters too so it could have been those too. After the 3 flushings, the water was excellent tasting! I used this instead filter instead of the apex one on my roes ph75. No issue at all. Same tubing diameter.

## Features

- BALANCED MINERALIZATION - Standard RO systems remove both harmful pollutants and beneficial minerals, often producing slightly acidic water. The FA15 Alkaline Mineral Filter restores essential minerals like calcium, magnesium, and potassium, balancing pH for healthier drinking water
- ENHANCED TASTE & QUALITY - Enjoy clean, safe, and great-tasting water every time you turn on the faucet, with improved mineral content and a refreshing taste
- UNIVERSAL COMPATIBILITY - Designed to be easily added to any under-sink water filter or RO system, making it a versatile upgrade for your filtration setup
- RAISES pH LEVEL - Effectively increases the pH of RO water, helping to balance acidity for a healthier hydration experience
- QUICK & SECURE INSTALLATION - The updated FA15 alkaline mineral filter features a push-fit quick connection for fast and hassle-free replacement. For installation assistance, refer to the user manual or reach out to our support team

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00FBLGD1S |
| Best Sellers Rank | #1,860 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #16 in Replacement Under-Sink Water Filters |
| Brand | iSpring |
| Brand Name | iSpring |
| Customer Reviews | 4.5 out of 5 stars 1,988 Reviews |
| External Testing Certification | ANSI |
| Global Trade Identification Number | 00662425063543 |
| Included Components | water filters |
| Item Dimensions D x W x H | 2"D x 2"W x 10"H |
| Item Type Name | 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 |
| Item Weight | 1 Ounces |
| Manufacturer | iSpring |
| Manufacturer Part Number | FA15 |
| Material | Mineral Balls, Calcite, Corosex |
| Material Type | Mineral Balls, Calcite, Corosex |
| Model Number | c8b999bb-ef40-4965-bd04-b8b06a0346fc |
| Number of Items | 1 |
| Product Benefits | Balances pH and restores essential minerals like calcium, magnesium, and potassium |
| Product Dimensions | 2"D x 2"W x 10"H |
| Set Name | iSpring FA15 Alkaline Water Filter Set |
| UPC | 662425063543 662425077700 |
| Unit Count | 1.0 Count |

## 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:** 2"D x 2"W x 10"H

## Images

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

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ It's perfect? 3 Tips provided.
*by O***Y on March 16, 2026*

Tip 1: Flow arrow is a clear engraving and easy to miss. Don't rely on the sticker label orientation in comparison to the video, which some say can be reversed. Tip 2: My TDS went from about 10-15 (iirc) to about 50-65 (My tap is 400TDS). Perfect for me. This TDS tastes great to me. EDIT: placing in front of tank, TDS dropped to 30-35. Not sure if this will cause scaling in the tank though. Tip 3: Took me about 1 minute to install. It's easy if you know how to release the quick connect. I did it in-line to the tank for now, but understanding there's maybe a few oz in the cartridge that will sit and overmineralize. I'll move it to before the tank if it bothers us as it does for some others. EDIT: I've heard of 3 different ways in the reviews to install this alkaline cartridge lol. The 3rd way is after tank but before polisher. Just different tradeoffs. No one has provided an argument for which is definitively best.

### ⭐⭐⭐⭐⭐ Great remineralizer
*by B***P on March 24, 2026*

This worked great but only after I flushed the system 3 times. I also changed the other 3 carbon and debris filters too so it could have been those too. After the 3 flushings, the water was excellent tasting! I used this instead filter instead of the apex one on my roes ph75. No issue at all. Same tubing diameter.

### ⭐⭐⭐⭐⭐ long lasting
*by P***N on June 21, 2026*

Long lasting, easy to add inline. Did not check difference in pH, and it does not influence taste

## 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

---

## 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.hu/products/3591699-ispring-fa15-alkaline-inline-water-filter-cartridge-10-x-2](https://www.desertcart.hu/products/3591699-ispring-fa15-alkaline-inline-water-filter-cartridge-10-x-2)

---

*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-07-06*