---
product_id: 8266048
title: "F28K75 NSF Certified 3-Year Replacement Set for 6-Stage Reverse Osmosis RO Systems with Alkaline Mineral Filter, 28 Pieces, White"
brand: "ispring"
price: "KD 92.65"
currency: KWD
in_stock: true
reviews_count: 8
category: "I Spring"
url: https://www.desertcart.com.kw/products/8266048-f28k75-nsf-certified-3-year-replacement-set-for-6-stage
store_origin: KW
region: Kuwait
---

# 6-stage filtration precision 28-piece 3-year supply NSF certified safety F28K75 NSF Certified 3-Year Replacement Set for 6-Stage Reverse Osmosis RO Systems with Alkaline Mineral Filter, 28 Pieces, White

**Brand:** ispring
**Price:** KD 92.65
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your hydration game with pure, mineral-rich water that your lifestyle deserves!

## Quick Answers

- **What is this?** F28K75 NSF Certified 3-Year Replacement Set for 6-Stage Reverse Osmosis RO Systems with Alkaline Mineral Filter, 28 Pieces, White by ispring
- **How much does it cost?** KD 92.65 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/8266048-f28k75-nsf-certified-3-year-replacement-set-for-6-stage)

## 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

- • **Long-Lasting Value:** Complete 3-year replacement kit with 28 parts for hassle-free maintenance
- • **Certified Peace of Mind:** NSF certification guarantees trusted, contaminant-free filtration
- • **Crystal-Clear Hydration:** 6-stage RO system delivers ultra-pure, great-tasting water every time
- • **Universal Compatibility:** Fits iSpring and most other brand RO systems for seamless upgrades
- • **Mineral-Boosted Wellness:** Alkaline mineral filter restores essential calcium, magnesium & potassium

## Overview

The iSpring F28K75 is a comprehensive 28-piece, 3-year replacement filter set designed for 6-stage reverse osmosis systems. NSF certified for safety and quality, it includes an alkaline mineral filter that restores essential minerals and balances pH, ensuring crisp, clean water that enhances beverages, cooking, and health. Compatible with iSpring and most other RO systems, this kit offers a convenient, cost-effective solution for premium water filtration at home or office.

## Description

Buy iSpring F28K75 NSF Certified 3-Year Replacement Set for 6-Stage Reverse Osmosis RO Systems with Alkaline Mineral Filter, 28 Pieces, White: Replacement Under-Sink Water Filters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great quality and super convenient! - I’ve been using iSpring filters for 4 years, and this 3-year replacement set is definitely worth it and saves money when buying in bulk. The parts are well-made, easy to swap out, and instantly improve the taste of our water. I love that everything for the full 6-stage system comes in one kit, and the NSF certification gives extra peace of mind. Reliable, long-lasting, and a solid value, highly recommend for anyone running an iSpring RO system.
Review: Excellent value & taste, filter replacement is very simple - After about 13 months of use with my NON-iSpring 6-stage RO system installed last year by a local vendor, the water taste had noticeably changed. By then, I'd been trying to schedule for weeks a date/time with the same vendor for filter replacement. When the tech finally came, he didn't have the alkaline filter with him... I said goodbye to him, and onto desertcart I went. These filters fit perfectly with my RO system. This is by far the best bargain for RO filters, and even includes a replacement membrane (replaced every 3 years). The local RO shop charges ~$150 to replace the 6-stage filters annually (not the membrane), and that's with the "6 months" filters being used for 12 months, and since iSpring's includes 6 of the "6 months" filters, it's an even better value. And you can replace the filters at your own convenience. Only caveat was I had to call iSpring to request 4 free quick-fit adapters to thread onto the stage 5 & 6 filters (my previous ones had quick-fit built into the filter cases), with several wraps of Mr. Gasket 2842G Teflon Tape (can leak otherwise). Phone support was very prompt and helpful. Check YouTube for simple "RO filter replacement" videos. You'll want to clean the Stage 1-3 filter canisters (the big vertical ones), since they get grimy after a year. If you don't already have a horizontal mount for the stage 5 or 6 filters, I'd recommend S5-TO-S6 RO Kit for 2.5" diameter Inline Filter (buy 2 if you need a pair for both filters), which will keep the stage 5 & 6 filters stable and less prone to hose leakage. --- [Update 02/02/2016] I just replaced replaced the second set, and water's still awesome. A friend had even commented how good our water tastes, although we didn't even mention our R.O. system!

## Features

- Experience clean, safe, and good-tasting water every time you turn on the faucet; Enjoy crystal clear ice cubes, fresher tea and coffee, better tasting foods, healthier baby formula – even better than most bottled water
- Fits iSpring Reverse Osmosis Alkaline PH Water Systems and most other brand name RO systems
- Gives back healthy minerals such as natural calcium, magnesium, sodium, potassium ions
- Produce perfectly PH-balanced alkaline water

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | iSpring |
| External Testing Certification | ANSI |
| Item Weight | 0.01 Ounces |
| Material | Activated Carbon,Carbon |
| Product Dimensions | 16"D x 11"W x 16"H |

## Images

![F28K75 NSF Certified 3-Year Replacement Set for 6-Stage Reverse Osmosis RO Systems with Alkaline Mineral Filter, 28 Pieces, White - Image 1](https://m.media-amazon.com/images/I/81uosMQ4JbL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great quality and super convenient!
*by R***N on December 2, 2025*

I’ve been using iSpring filters for 4 years, and this 3-year replacement set is definitely worth it and saves money when buying in bulk. The parts are well-made, easy to swap out, and instantly improve the taste of our water. I love that everything for the full 6-stage system comes in one kit, and the NSF certification gives extra peace of mind. Reliable, long-lasting, and a solid value, highly recommend for anyone running an iSpring RO system.

### ⭐⭐⭐⭐⭐ Excellent value & taste, filter replacement is very simple
*by J***R on March 4, 2015*

After about 13 months of use with my NON-iSpring 6-stage RO system installed last year by a local vendor, the water taste had noticeably changed. By then, I'd been trying to schedule for weeks a date/time with the same vendor for filter replacement. When the tech finally came, he didn't have the alkaline filter with him... I said goodbye to him, and onto Amazon I went. These filters fit perfectly with my RO system. This is by far the best bargain for RO filters, and even includes a replacement membrane (replaced every 3 years). The local RO shop charges ~$150 to replace the 6-stage filters annually (not the membrane), and that's with the "6 months" filters being used for 12 months, and since iSpring's includes 6 of the "6 months" filters, it's an even better value. And you can replace the filters at your own convenience. Only caveat was I had to call iSpring to request 4 free quick-fit adapters to thread onto the stage 5 & 6 filters (my previous ones had quick-fit built into the filter cases), with several wraps of Mr. Gasket 2842G Teflon Tape (can leak otherwise). Phone support was very prompt and helpful. Check YouTube for simple "RO filter replacement" videos. You'll want to clean the Stage 1-3 filter canisters (the big vertical ones), since they get grimy after a year. If you don't already have a horizontal mount for the stage 5 or 6 filters, I'd recommend S5-TO-S6 RO Kit for 2.5" diameter Inline Filter (buy 2 if you need a pair for both filters), which will keep the stage 5 & 6 filters stable and less prone to hose leakage. --- [Update 02/02/2016] I just replaced replaced the second set, and water's still awesome. A friend had even commented how good our water tastes, although we didn't even mention our R.O. system!

### ⭐⭐⭐⭐⭐ Filter like a pro. Drink like it’s going out of style.
*by R***H on August 26, 2025*

This is really your best bang for your buck the three year filter supply. The ispring unit is awesome. I am so glad I purchased it five years ago. The company is great to deal with you really just can’t go wrong. It’s cheaper than most local water places and it works great thank you “Nick” for your outstanding customer service when I called with a question.

## Frequently Bought Together

- iSpring F28K75 3-Year Replacement Supply Set for 6-Stage Reverse Osmosis RO Water Filtration Systems with Alkaline Mineral Filter, 28 Piece, White
- iSpring RCC7AK 6 Stage Reverse Osmosis Water System Under Sink with Alkaline Remineralization, NSF Certified, 75 GPD, TDS Reduction

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-03-24*