---
product_id: 359310850
title: "- RO500AK-BN Reverse Osmosis Water Filter, NSF 58 Certified, 500 GPD Tankless Under Sink RO System, Natural pH Alkaline Remineralization, 2:1 Pure to Drain Ratio, Brushed Nickel Faucet"
brand: "ispring"
price: "€ 1367.74"
currency: EUR
in_stock: true
reviews_count: 8
category: "I Spring"
url: https://www.desertcart.sk/products/359310850-ro500ak-bn-reverse-osmosis-water-filter-nsf-58-certified-500
store_origin: SK
region: Slovakia
---

# 500 GPD ultra-fast flow 2:1 pure-to-drain ratio saves water 3-stage advanced filtration - RO500AK-BN Reverse Osmosis Water Filter, NSF 58 Certified, 500 GPD Tankless Under Sink RO System, Natural pH Alkaline Remineralization, 2:1 Pure to Drain Ratio, Brushed Nickel Faucet

**Brand:** ispring
**Price:** € 1367.74
**Availability:** ✅ In Stock

## Summary

> 💧 Drink Smart, Live Elevated: The Future of Clean Water is Here

## Quick Answers

- **What is this?** - RO500AK-BN Reverse Osmosis Water Filter, NSF 58 Certified, 500 GPD Tankless Under Sink RO System, Natural pH Alkaline Remineralization, 2:1 Pure to Drain Ratio, Brushed Nickel Faucet by ispring
- **How much does it cost?** € 1367.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/359310850-ro500ak-bn-reverse-osmosis-water-filter-nsf-58-certified-500)

## 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

- • **Next-Level Filtration:** NSF 58 certified 3-stage system removes 99%+ contaminants including lead, fluoride, and arsenic, with natural alkaline remineralization for crisp taste.
- • **Pure Water, Zero Waste:** Industry-leading 2:1 pure-to-waste ratio slashes water waste by 400%, saving your bills and the planet.
- • **Speed Meets Space-Savvy:** Tankless design delivers 500 gallons/day at 0.4 GPM, filling your glass in 10 seconds while freeing up 70% under-sink space.
- • **Trusted Support & Longevity:** Backed by 1-year warranty, 30-day money-back, and lifetime US-based customer care—because clean water is a lifelong commitment.
- • **Effortless DIY & Maintenance:** Plug-and-play setup with tool-free filter changes and automatic self-cleaning keeps performance peak without hassle.

## Overview

The iSpring RO500AK-BN is a NSF 58 certified, tankless under-sink reverse osmosis system delivering up to 500 gallons of purified water daily with a fast 0.4 GPM flow rate. Its innovative 2:1 pure-to-drain ratio drastically reduces wastewater, while a 3-stage filtration process removes over 1,000 contaminants and naturally balances pH with alkaline remineralization. Compact and easy to install, it features tool-free filter replacements and automatic membrane self-cleaning. Finished with a sleek brushed nickel faucet, it combines cutting-edge technology with modern design, supported by a 1-year warranty and dedicated US customer service.

## Description

iSpring RO500AK-BN Reverse Osmosis Water Filter, NSF 58 Certified, 500 GPD Tankless Under Sink RO System, Natural pH Alkaline Remineralization, 2:1 Pure to Drain Ratio, Brushed Nickel Faucet - desertcart.com

Review: Awesome compact reverse osmosis system - This iSpring RO600 is excellent! I purchased this iSpring to replace a 5-stage RO system with a tank (a different popular brand), as I had bought replacement membranes for that system, but they produced a weird and horrible taste. When I contacted that former RO's customer service, they were difficult to get a hold of, then rude on the phone when I finally got through, then asked to send in pictures of the faulty system and filters via email. They ended up not helping us and were rude in the non-ownership of the problem their replacement filters had created. That lead me to research a lot of systems here on desertcart and decided to purchase this iSpring system because of all the wonderful features. The RO600 takes up less than half of the valuable under-sink space that the former 5-stage did; it is sleek-looking; and the water waste for purification is less than half of that of the 5- stage, which translates into more money in my pocket at the end of the month. I will never go back to a tank! The RO600 is very quiet and the water the iSpring puts out is clean, clear, refreshing, and tasteless. The RO600 puts out water much more quickly than my old system. Also, there is no guessing if everything is okay with the iSpring, or if a filter needs to be replaced, because of the 3 LED lights on it. It is also an easy process to change the 2 membranes, unlike traditional RO systems. So you don't end up with water all over the floor and old filters in your sink draining for hours after changing the 5 different membranes. The iSpring is plug-and-play and you don't need a special wrench for the task! The filters are very affordable when replacement time rolls around, especially since one of the two membranes only needs to be replaced every 2 years, and the second one, once a year. This saves a lot of money compared to 5 + membranes replaced each year with other systems. It comes out to less than $1.50 per week for a 600 gpd RO system. If you have any questions regarding the system, the customer service is outstanding. There's someone who can answer your questions that's based here in the U.S., and you feel like a valued customer. This is a night-and-day difference from my other experience, and I will be an iSpring customer for life! Finally, there were some reviews stating that it couldn't be hooked up to a fridge. Ours is spliced out to our 2012 Maytag and it works just fine. It has a tiny delay the first 1/4 second of operation, but runs smoothly after that. (I believe it's just the length of the connecting line, combined with gravity.) This does not bother me and I really wouldn't think anything of it, other than trying to be 100% honest in a review. I'm glad I chose the iSpring RO600 for my home. It was a great financial and healthy investment for clean drinking water for my family of four and a total upgrade from my old 5-stage RO system with a tank.
Review: ISpring Tankless RO - This ISpring Tankless RO is exceptional both in function and in the amazing service that is provided for ongoing support. Drinking water is THE major health issue for overall wellness, longevity, etc. First the product...it is tankless so installation under a sink is straightforward. I still had my plumber do it and he was done in 10 minutes. Then you get crystal clear on demand drinking water all day. Suddenly my coffee, tea, soups, etc. all taste amazing. Filter changes are a breeze...on a six month, one year, and two year cycle....it is just a quarter turn and done. It is easier than changing inkjet printer cartridges. Next, the service. ISpring provides support with REAL HUMANS. You call on an issue of filter change or anything else and a helpful rep with real expertise is there to guide you. In my case my system started to act up and not deliver water without unplugging and replugging the unit several times. I called ISpring and my rep -- NICK -- listened to the pattern I described and determined it was an issue with the pump....my unit was 21 months old and within the warranty and he promptly sent me a new base unit! This was amazing....they really do stand behind their product and the price is so reasonable for something that is essential every day. I tell everyone about this system because of its quality and for super service reps like NICK who truly care about their clients.!

## Features

- NSF 58 Certified - The iSpring RO500AK-BN tankless reverse osmosis system is NSF 58 certified for TDS reduction. Scan the QR code for the official NSF online test report. Industry-leading 2:1 pure-to-waste ratio reduces wastewater by up to 400% compared to traditional RO systems, lowering water bills and minimizing waste.
- 500 GPD Fast Water Flow - The RO500AK-BN reverse osmosis water filter system delivers up to 500 gallons of purified water per day, with a fast flow rate of 0.4 GPM—enough to fill an 8 oz cup in just 10 seconds. This high output of the reverse osmosis system ensures improved efficiency and minimizes waiting time for clean, refreshing water, making it perfect for homes, offices, coffee shops, and restaurants. Its tankless design saves up to 70% of under-sink space, offering a more compact and modern solution. Please note: This tankless ro system under sink requires access to electricity.
- Superb Filtration Performance - The RO500AK-BN ro water filter features a powerful 3-stage filtration process. It begins with a 2-in-1 composite sediment and carbon block filter to effectively reduce rust, sand, chlorine, and other particles. The advanced RO membrane removes up to 99% of over 1,000 harmful contaminants, including 98% of lead, as well as fluoride, arsenic, asbestos, calcium, and more. Finally, a carbon alkaline filter balances the water’s pH and adds beneficial minerals to enhance taste and support overall wellness.
- Easy, Hassle-Free Installation & Maintenance - Designed for convenient DIY setup, this system comes with a detailed instruction manual and is compatible with both 1/2” and 3/8” pipes. Its reinforced integrated water route ensures a secure, leak-free installation. Filter replacements are quick and tool-free, requiring no water shutoff. An automatic self-cleaning function activates after 24 hours of inactivity to rinse the RO membrane, extending its lifespan and maintaining optimal performance.
- Reliable Support & Warranty - Enjoy peace of mind with a 30-day money-back guarantee, a 1-year manufacturer warranty, and extended coverage available upon registration. iSpring’s dedicated customer service and technical support team, based in Atlanta, GA, is here to assist you for life.
- Convenient Replacement Filters - The F7-RO500AK filter pack offers high-capacity replacement filters designed specifically for the RO500AK tankless RO system, providing up to 2 years of hassle-free performance and easy maintenance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09CHBC9CP |
| Batteries Required? | No |
| Best Sellers Rank | #18,298 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #41 in Under-Sink & Countertop Filtration |
| Brand | iSpring |
| Color | White + Brushed Nickel Faucet |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,653) |
| Date First Available | August 12, 2021 |
| Installation Type | Under Sink |
| Item Package Quantity | 1 |
| Item Weight | 21 pounds |
| Item model number | RO500AK-BN |
| Lower Temperature Rating | 41 Degrees Fahrenheit |
| Manufacturer | iSpring Water Systems |
| Maximum Flow Rate | 0.4 Gallons Per Minute |
| Model Name | RO500AK-BN |
| Package Information | Box |
| Part Number | RO500AK |
| Pattern | Filtration System |
| Product Dimensions | 17.5"L x 5.2"W x 16.25"H |
| Size | NSF 500 GPD Alkaline RO |
| Special Feature | 2:1 Pure to Drain Ratio, Tankless |
| Special Features | 2:1 Pure to Drain Ratio, Tankless |
| Style | Tankless Alkaline RO |
| Supported Water TDS Level Maximum (PPM) | 1000 |
| UPC | 810004172258 |
| Upper Temperature Rating | 100 Degrees Fahrenheit |

## Product Details

- **Brand:** iSpring
- **Capacity:** 500 Gallons
- **Included Components:** Tubing, System, Feed water adapter, Drain saddle, Faucet, Power supply, manual
- **Installation Type:** Under Sink
- **Item Weight:** 21 Pounds
- **Material:** Reverse Osmosis Membrane & Carbon Block + PP Composite Filter& Carbon Alkaline Filter
- **Package Information:** Box
- **Product Dimensions:** 17.5"L x 5.2"W x 16.25"H
- **Purification Method:** Reverse Osmosis
- **Special Feature:** 2:1 Pure to Drain Ratio, Tankless

## Images

![- RO500AK-BN Reverse Osmosis Water Filter, NSF 58 Certified, 500 GPD Tankless Under Sink RO System, Natural pH Alkaline Remineralization, 2:1 Pure to Drain Ratio, Brushed Nickel Faucet - Image 1](https://m.media-amazon.com/images/I/51PmJWV7HZL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Awesome compact reverse osmosis system
*by E***G on January 12, 2024*

This iSpring RO600 is excellent! I purchased this iSpring to replace a 5-stage RO system with a tank (a different popular brand), as I had bought replacement membranes for that system, but they produced a weird and horrible taste. When I contacted that former RO's customer service, they were difficult to get a hold of, then rude on the phone when I finally got through, then asked to send in pictures of the faulty system and filters via email. They ended up not helping us and were rude in the non-ownership of the problem their replacement filters had created. That lead me to research a lot of systems here on Amazon and decided to purchase this iSpring system because of all the wonderful features. The RO600 takes up less than half of the valuable under-sink space that the former 5-stage did; it is sleek-looking; and the water waste for purification is less than half of that of the 5- stage, which translates into more money in my pocket at the end of the month. I will never go back to a tank! The RO600 is very quiet and the water the iSpring puts out is clean, clear, refreshing, and tasteless. The RO600 puts out water much more quickly than my old system. Also, there is no guessing if everything is okay with the iSpring, or if a filter needs to be replaced, because of the 3 LED lights on it. It is also an easy process to change the 2 membranes, unlike traditional RO systems. So you don't end up with water all over the floor and old filters in your sink draining for hours after changing the 5 different membranes. The iSpring is plug-and-play and you don't need a special wrench for the task! The filters are very affordable when replacement time rolls around, especially since one of the two membranes only needs to be replaced every 2 years, and the second one, once a year. This saves a lot of money compared to 5 + membranes replaced each year with other systems. It comes out to less than $1.50 per week for a 600 gpd RO system. If you have any questions regarding the system, the customer service is outstanding. There's someone who can answer your questions that's based here in the U.S., and you feel like a valued customer. This is a night-and-day difference from my other experience, and I will be an iSpring customer for life! Finally, there were some reviews stating that it couldn't be hooked up to a fridge. Ours is spliced out to our 2012 Maytag and it works just fine. It has a tiny delay the first 1/4 second of operation, but runs smoothly after that. (I believe it's just the length of the connecting line, combined with gravity.) This does not bother me and I really wouldn't think anything of it, other than trying to be 100% honest in a review. I'm glad I chose the iSpring RO600 for my home. It was a great financial and healthy investment for clean drinking water for my family of four and a total upgrade from my old 5-stage RO system with a tank.

### ⭐⭐⭐⭐⭐ ISpring Tankless RO
*by M***. on September 6, 2025*

This ISpring Tankless RO is exceptional both in function and in the amazing service that is provided for ongoing support. Drinking water is THE major health issue for overall wellness, longevity, etc. First the product...it is tankless so installation under a sink is straightforward. I still had my plumber do it and he was done in 10 minutes. Then you get crystal clear on demand drinking water all day. Suddenly my coffee, tea, soups, etc. all taste amazing. Filter changes are a breeze...on a six month, one year, and two year cycle....it is just a quarter turn and done. It is easier than changing inkjet printer cartridges. Next, the service. ISpring provides support with REAL HUMANS. You call on an issue of filter change or anything else and a helpful rep with real expertise is there to guide you. In my case my system started to act up and not deliver water without unplugging and replugging the unit several times. I called ISpring and my rep -- NICK -- listened to the pattern I described and determined it was an issue with the pump....my unit was 21 months old and within the warranty and he promptly sent me a new base unit! This was amazing....they really do stand behind their product and the price is so reasonable for something that is essential every day. I tell everyone about this system because of its quality and for super service reps like NICK who truly care about their clients.!

### ⭐⭐⭐⭐⭐ flawless system
*by A***Y on February 16, 2026*

It has been a few weeks since I installed the iSpring and it has worked flawlessly. The installation instructions, both written and video, were very easy to follow and the installation went off without a hitch. I'd have to say that the most difficult thing was registering the product online. LOL. The registration liaison, Sean, was very helpful and quick to respond. I've had the tank RO systems in the past and the tankless is a great improvement for us and the amount of clear, clean water that we go through on a daily basis. The only thing I had reservations about was the speed of water flow but it is completely adequate for all our needs. Everything, especially the coffee and tea, tastes better. Overall a great experience. I am hoping to have many, many filter changes in the years to come.

## Frequently Bought Together

- iSpring RO500AK-BN Reverse Osmosis Water Filter, NSF 58 Certified, 500 GPD Tankless Under Sink RO System, Natural pH Alkaline Remineralization, 2:1 Pure to Drain Ratio, Brushed Nickel Faucet
- iSpring F3-RO500AK 1 Year Replacement Filter Pack for RO500 Series Tankless Reverse Osmosis Water Filtration System
- iSpring ICEK Ultra Safe Fridge Water Line Connection and Ice Maker Installation Kit for Reverse Osmosis RO Systems & Water Filters, 1/4", 20 feet

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-01*