Search  for anything...

iSpring RO500-BN, NSF Certified Tankless RO Reverse Osmosis Water Filtration System, 500 GPD Fast Flow, Brushed Nickel Faucet, 2:1 Pure to Drain Ratio, White

  • Based on 484 reviews
Condition: New
Checking for the best price...
$625.05 Why this price?
Save $373.95 was $999.00

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Jul 28
Order within 13 hours and 6 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Color: White + Brushed Nickel Faucet


Size: NSF 500 GPD RO


Features

  • [NSF 58 Certified] iSpring RO500-BN tankless reverse osmosis system is NSF 58 certified for TDS reduction.
  • [Next Generation RO System] iSpring RO500-BN is the next generation reverse osmosis filtration system. Just like you trust iSpring RCC7 series RO systems, you can count on the RO500-BN that has raised the bar for water purification. Experience less waiting time when you fill up your cup, pitcher, or cooking pots with clean and tasty water. With a fast flow rate of up to 0.4 gallons per minute, this RO system can satisfy the water needs of families, offices, coffee shops, restaurants, and more
  • [Superb Filtration Performance] With its first-stage, a 2-in-1 composite Sediment and Carbon Block filter, second-stage featuring an advanced RO Membrane, the RO500-BN effectively removes up to 99% of over 1,000 contaminants, including lead (up to 98% removal), chlorine, fluoride, arsenic, asbestos, calcium, sodium, and more. In the third stage, Carbon Block Filter further enhances the taste of the purified water. Enjoy all the benefits of drinking clean and refreshing water.
  • [Economical and Ecological Choice] With an exceptional pure water to wastewater ratio (up to 2:1), RO500-BN saves water waste by up to 400% compared to traditional RO systems. This industry-leading pure-to-waste ratio contributes to reduced water bills and less water going down the drain. This system also has an automatic self cleaning mode. If this system is not used after 24 hours, it will rinse the RO MEMBRANE for 20 seconds to prolong its life. Featuring a sleek tankless look, RO500-BN frees more space in your under-sink storage area and adds aesthetic pleasure to your kitchen.
  • [500 GPD Fast Water Flow] The RO500-BN RO system produces 500 gallons of filtered water per day. With a fast and stable water flow rate, this RO system fills an 8oz cup with water in 10 seconds, which is ideal for drinking water. The RO500-BN RO water filtration system also meets the water needs of big families and companies. With a detailed instruction manual, it is easy to install and maintain.
  • [Hassle-Free] Feed water adapter fits 1/2 or 3/8 inch pipes. Thanks to its reinforced integrated water route design, and leak-free DIY installation, filter changes are greatly simplified, much easier, and truly time-saving. No need to shut off the water supply when changing filters. Filter changes can be completed within seconds. Backed by a 30-day money-back guarantee, 1-year manufacturer warranty, and extended warranty upon registration. Lifetime customer service and tech support from iSpring in Atlanta, GA
  • *F7-RO500 : Individually wrapped 2-year high capacity filter replacement cartridge pack for RO500 Tankless RO Reverse Osmosis Water Filtration System

Features

  • [Next Generation RO System] iSpring RO500 is the next generation reverse osmosis filtration system. Just like you trust iSpring RCC7 series RO systems, you can count on the RO500 that has raised the bar for water purification. Experience less waiting time when you fill up your cup, pitcher, or cooking pots with clean and tasty water. With a fast flow rate of up to 0. 4 gallons per minute, this RO system can satisfy the water needs of families, offices, coffee shops, restaurants, and more.
  • [Superb Filtration Performance] With its 1st-stage 3-in-1 composite Sediment and Carbon Block filter and 2nd-stage advanced RO Membrane, RO500 effectively removes TDS, limescale, up to 99% of over 1, 000 contaminants, including lead (removes up to 98%), chlorine, fluoride, arsenic, asbestos, calcium, sodium, and more. 3rd stage Carbon Block Filter further enhances the taste of the purified water. Enjoy all the benefits of drinking clean and refreshing water.
  • [Economical and Ecological Choice] With an exceptional pure water to waste water ratio(up to 2: 1), RO500 saves water waste by up to 400% compared to a traditional RO system. This industry-leading pure-to-waste ratio contributes to reduced water bills and less water going down the drain. Featuring a sleek tankless look, RO500 frees more space in your under-sink storage area and adds aesthetic pleasure to your kitchen.
  • [500 GPD Fast Water Flow] The RO500 RO system produces 500 gallons of filtered water per day. With a fast and stable water flow rate, this RO system fills an 8oz cup with water in 6.5 seconds, which is ideal for drinking water. The RO500 RO water filtration system also meets the water needs of big families and companies.
  • [Easy to Install & Replace Filter] With a detailed instruction manual and access to lifetime technical support, it is easy to install and maintain. Replacement filters for all models are available for order. Easy twist and lock filters without cutting off the water supply.

Brand: iSpring


Special Feature: Twist and Lock Filters


Product Dimensions: 19"L x 8"W x 24"H


Package Information: Pots


Installation Type: Under Sink


Power Source: Corded Electric


Item Weight: 21 Pounds


Model Name: RO500-BN


Maximum Flow Rate: 90 Liters Per Hour


Product Dimensions ‏ : ‎ 19 x 8 x 24 inches; 21 Pounds


Item model number ‏ : ‎ RO500-BN


Date First Available ‏ : ‎ August 15, 2019


Manufacturer ‏ : ‎ iSpring Water Systems


Country of Origin ‏ : ‎ China


Best Sellers Rank: #58,410 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #133 in Under-Sink & Countertop Filtration


#133 in Under-Sink & Countertop Filtration:


Customer Reviews: 4.7 4.7 out of 5 stars 484 ratings


Brand: iSpring


Special Feature: 21 Pure to Drain Ratio, Tankless


Product Dimensions: 17.5"L x 5.2"W x 16.25"H


Material: Reverse Osmosis Membrane & Carbon Block + PP Composite Filter & Post Carbon Filter


Capacity: 500 Gallons


Included Components: Ancillary faucet


Package Information: Box


Installation Type: Under Sink


Purification Method: Carbon Block, Reverse Osmosis


Power Source: Corded Electric


Other Special Features of the Product: 21 Pure to Drain Ratio, Tankless


Container Type: Box


Installation Type: Under Sink


Purification Method: Carbon Block, Reverse Osmosis


Power Source: Corded Electric


LowerTemperature Range: 41 Degrees Fahrenheit


Maximum Flow Rate: 0.4 Gallons Per Minute


Operating Pressure Range: 15-70 PSI


Upper Temperature Rating: 100 Degrees Fahrenheit


Supported Water TDS Level Maximum (PPM): 750


Smart Home Compatibility: Not Smart Home Compatible


Item Dimensions L x W x H: 17.5"L x 5.2"W x 16.25"H


Capacity: 500 Gallons


Item Weight: 21 Pounds


Brand Name: iSpring


Included Components: Ancillary faucet


Model Name: RO500-BN


Model Number: RO500


Warranty Description: By default every iSpring reverse osmosis water filtration system comes with thirty-day money back policy and one-year limited manufacturer warranty. We care and love to help customers. Besides DIY videos on YouTube and Knowledge Base on our website, we provide lifetime customer service from Atlanta, GA. Please don't hesitate to reach out to us before and after your purchase. Your satisfaction is our top priority!


UPC: 810004171305


Manufacturer: iSpring Water Systems


Manufacture Year: 2017


Part Number: RO500


Item Type Name: Tankless RO Reverse Osmosis Water Filtration System, 500 GPD Fast Flow, Smart Faucet with TDS Monitoring, 21 Pure to Drain Ratio


Material Type: Reverse Osmosis Membrane & Carbon Block + PP Composite Filter & Post Carbon Filter


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jul 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Game changer
Color: White + Brushed Nickel Faucet Size: NSF 500 GPD RO
The iSpring RO500 is a total game-changer, delivering incredibly crisp, high-flow water in a sleek, space-saving tankless design that was a breeze to install. While the filtration performance is top-tier, the customer service is what truly sets this company apart; I had a few specific inquiries and worked with Nick, who was absolutely fantastic. He was professional, patient, and went above and beyond to ensure I had everything I needed, making the entire experience seamless. If you’re looking for a high-quality RO system backed by a support team that actually cares, I can’t recommend iSpring and Nick highly enough! ... show more
Reviewed in the United States on February 2, 2026 by Neil R

  • Water tastes great, installation easy, easy to use, supper customer support
Color: White + Brushed Nickel Faucet Size: NSF 500 GPD RO
The water filter is wonderful, the water tastes so clean, the installation is easy. We did have a problem with the filter not working properly but Ispring Support especially Sean was great, so helpful, and sent a replacement filter within a week. I would highly recommend the filter. We have tried other systems and this was is superb. It fits easily under the sink. ... show more
Reviewed in the United States on March 13, 2026 by Vickihaha

  • Great system and works with fridge water Great system and works with fridge water
Color: White + Brushed Nickel Faucet Size: NSF 500 GPD RO
We decided to try this tankless RO system after finding a crack in the manifold of our APEC water system. Bottom line up front... this thing is great, produces good tasting water, and it WORKS WITH OUR FRIDGE WATER AND ICE MAKER. Installation: installing this system is easy but the instructions can be confusing. If you’re handy you won’t have a problem. Installed filters, connect the inlet, drain, and faucet lines, plug it in and it starts. Let the faucet run 30 mins and your set. A couple notes... 1. The inlet is 3/8 not 1/4 inch line. If you have an existing system you’ll have to change out your supply valve and line. 2. The “rinse” described in the manual happens automatically after you plug the system in. Let it run it’s course before turning on the faucet. Fridge water and Ice: you can use ISpring’s kit to do this but I used what I had previously installed. 1. Install a t-fitting in the outlet line that goes to the faucet as shown in pics. 2. Connect 1/4 line from the t-fitting to the fridge inlet. 3. That’s pretty much it. When the fridge calls for water the RO system turns on. There’s some misinformation out there that the faucet turns on the system but this is false. My ice makers are making plenty of ice and I’ve had no issues. Performance: Pressure: pressure at the faucet seems slightly less than our old traditional system. However, it’s very consistent pressure even when filling a large container. Taste: the first day the water tasted a little like our tap water. After that though it definitely tasted better, more like bottled water. Volume: where a traditional RO system will slow down the more you drain the tank this system doesn’t do that. It’s very consistent and just keeps making good tasting clean water. Space saving: I replaced a 4 gallon traditional RO system with this one. It’s amazing to have the space under the sink back. No tank is the way to go. If you’re in the fence about this system or a traditional RO get this one. ... show more
Reviewed in the United States on May 25, 2021 Reviewed in the United States on May 25, 2021 by Jeff Davis

  • Tucked-Away and Nearly Perfect Tucked-Away and Nearly Perfect
Color: White + Brushed Nickel Faucet Size: NSF 500 GPD RO
Initial review: 1.) extremely easy install — if you can read and hold a wrench, then enjoy this cake walk install! 2.) water tastes great, crisp and has low TDS, consistently 3.) with a little bit of foam lining, I butted this up against the inner cabinet and can barely hear it 4.) simplicity all around: simple filters, simple connectors, simple look, simple glowing indicators. Literally exactly what I wanted! Cons: - Filling out warranty was miserable experience as the web form is finicky - Julius from customer service did it for me. - I had one missing clip for a hose. I rigged one with wire that I keep around for these types of situations. Long story short: this is what RO systems should be like. Easiest -to- date home improvement project I’ve taken on. Side Note: buy a diamond drill bit if you don’t have an opening in your granite/marble and drill patiently. (1/2” and make sure you notch it first by drilling sideways - create a steady groove — and have fun!) ... show more
Reviewed in the United States on July 23, 2025 Reviewed in the United States on July 23, 2025 by Beorn

  • The output is superb for this unit
Color: White + Brushed Nickel Faucet Size: NSF 500 GPD RO
If your countertop is stone/granite you will need to consider faucet hole drilling guidance. The install of the unit is straight forward for a DIY, and no tank to take up space. The water is great. No mineral post filter, because water was never meant to be a source of nutrition.
Reviewed in the United States on January 29, 2026 by YarkMuffin

  • Excellent RO system and excellent customer support
Color: White + Brushed Nickel Faucet Size: NSF 500 GPD RO
I purchased this unit after a similar, larger system from another company became unusable the first time I needed new filters, as they had disappeared from the marketplace. I wanted a company that would be around for a while. I've seen iSpring before, and decided to try the 500 GPD system. It worked flawlessly and produced all the water we needed. (I don't use 500 GPD, but wanted the large unit for the RATE of production.) I added a small pressure tank when I installed it in my RV, and it supplies the tank, the drinking water faucet, the refrigerator's ice maker, and the espresso machine. At the 1 year mark, it started signaling that it needed new filters. I purchased these and when I went to install them, the unit leaked a fair amount of water every time I turned it back on. Examination of the cupboard it sat in showed that it had leaked for a while. I contact customer support to see about opening it up for repairs (I'm pretty handy) but they said that they would simply send me a brand new unit and I could just transfer over my existing filters and membrane. I live in my RV full-time and had to coordinate having the unit sent to where I would be. They actually sent out two because of a snafu, but I have my new unit and it works just fine. I can't say enough about the friendly support from the company, getting me a new system from Georgia up to Idaho, my current location. Excellent service, and if you are buying an expensive item like this, you want to know that it will be yours for a long time. ... show more
Reviewed in the United States on August 20, 2025 by SomeGuy

  • EVERYTHING I WANTED IN AN RO MACHINE... AND MORE!!! EVERYTHING I WANTED IN AN RO MACHINE... AND MORE!!!
Color: White + Brushed Nickel Faucet Size: NSF 500 GPD RO
I did quite a bit of research before buying this RO filtration system and one thing that was holding me back from purchasing this unit was the two negative Amazon reviews. But after doing my research and comparing the features of this unit to other RO filters, I decided to take a chance on this one... and I am SO GLAD I did. It was everything I wanted in an RO machine... and more! PROS: LOW WASTE WATER- One thing that sold me on this machine was the low water waste when compared to other RO filters. We are on a low-producing water well, so every gallon matters. Some other units will waste 10 gallons of water for every 1 galloon of good water. Good machines are 1 waste to 1 good gallon. Great machines are 1 waste to 1.5 good. This machine is 2:1 per the iSpring website, meaning it only wastes 1 gallon of water for every 2 gallons of good water it produces. EFFECTIVE FILTRATION- This filter is very effective at filtering the water. I tested our water without the filter and it had 333ppm dissolved solids in it. While using the filter, it was 11ppm (when I took the picture). It actually dropped all the way to 9ppm after the picture. And tastes delicious too! TANKLESS- There's no storage tank (like what most RO filters have). It's now clean and de-cluttered underneath my kitchen sink. FAST FLOW RATE- We've had multiple RO machines in the past (with a storage tank)... and they just dribble and dribble for hours, wasting lots of precious water to fill up the water tank. Because there was no storage tank for this filter, I was concerned before purchasing that the water was going to dribble into my cup. But it flows much faster than I expected! I filled up a nice sized drinking glass in about 20 seconds and I filled up a 1-gallon water jug in about 2 min 45 seconds. The iSpring website shows 500 gpd (gallons per day). Very impressed! FAIRLY EASY INSTALLATION- The unit was fairly easy to install. I would say it was only a little easier to install than a normal RO filter that has a tank. But on this unit, all the water lines plug into the same spot on the RO filter, so it is a much cleaner look. 'SMART' FAUCET- One extra perk of this filter (which I didn't realize when I purchased it) is that the faucet actually has a digital display showing you how many ppm's are in your water as it's coming out. Way cool! I used a separate hand-held ppm tester to make sure it was accurate... and it was spot on! CONS: COST- One con is obviously the price. With tax, this unit was nearly $600. But in my opinion, it was well worth the investment for my family. I was hesitant to spend this kind of money on a water filter, but am glad I did. NOISE- The unit is not very noisy, but please know it does have a built-in pump that turns on every time you get water. Overall, I am VERY happy with my new RO filtration system and would recommend it to everyone looking for a machine! No one paid me or asked me to write this review. It is simply from a HAPPY customer! ... show more
Reviewed in the United States on March 13, 2020 Reviewed in the United States on March 13, 2020 by Jason Johnson

  • Great Product & superb customer support ! Great Product & superb customer support !
Color: White + Brushed Nickel Faucet Size: NSF 500 GPD RO
Replacing a 14 years old watts RO with ispring tankless, the newer faucet requires a small hole vs what I was replacing. Reached out to ispring and Nick sent a vanity kit that helped solve the issue. Great customer support ! The water filter was successfully installed. Thanks !!
Reviewed in the United States on April 20, 2026 Reviewed in the United States on April 20, 2026 by desi-from-ca

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...