iSpring RCC7 AK RO Water Filter System Review

In Brief: Review of iSpring RCC7 AK

The iSpring RCC7 AK is designed to be cost-effective and provide better tasting RO purified water. It has easy installation and the filters can be replaced without any complications. The sixth filter in this system gives back safe minerals into the cleaned water to make it less acidic. This is ideal for homes and small offices that need to purify tap water for drinking purposes.

iSpring Water Systems LLC is a family business known for supplying water filtration products. Headquartered in Georgia, it has been present in this field for over two decades.

The iSpring RCC7 AK is a 6-stage reverse osmosis system that removes contaminants from water, making it fit for drinking. It has an additional filter that improves the taste and pH of water.

Key Specifications of iSpring RCC7 AK

iSpring RCC7AK 6-Stage Superb Taste High Capacity Under Sink Reverse Osmosis Drinking Water Filter System with Alkaline Remineralization - Natural pH

The iSpring RCC7 AK is an affordable RO water purifier that removes 1000+ contaminants from tap water. In addition to the iSpring reverse osmosis filtration process, this system also adds healthy minerals to the cleaned wager.

This takes care of the regular bland taste of RO water by making it less acidic. The filters are cartridges that are placed in a clear plastic holder. They can be replaced without much hassle.

In fact, like all iSpring products, this too has very simple installation. It can be done within a few hours by just about anyone. It doesn’t require you to hire a professional plumber.

It gives out close to 75 gallons of purified water daily. The storage tank has a capacity of 3.2 gallons.

This is a great amount of water for a small to a medium-sized family with relatively high water requirements.

The faucet is completely lead-free and has a brushed nickel, all-metal European design. The system even has an anti-leakage alarm system.

This package includes:

  • RO machine
  • Pre-filter Housings
  • Complete filter pack
  • Storage tank
  • Brushed nickel faucet
  • Wrenches
  • 4-Color tubings
  • Feedwater adapter
  • Drain saddle
  • Spare fittings & O-rings
  • Manual

Major specifications of the iSpring RCC7 AK:

Capacity75 gallons per day
Storage tank capacity3.2 gallons
Water pressure range45-70 psi
Water temperature range40-100 °F
Filtration process6-stage
Number of pre-filters3
Number of internal filters3
Filtered water to wastewater ratio1:3
Maximum TDS750 ppm
Lead reduction98%
Particulate matter removal99%
Chemical removal98%
Filtered water pH7.0 or below
Battery cell typeAlkaline
Shipping weight29.6 lbs
Dimensions14.5 x 6 x 17 inches
Ideal working conditions60 psi and 77 °F
Replacement scheduleStage 1 - 3 every 6 months
RO every 2 - 3 years
Post carbon every 12 months

What Impurities it removes and Benefits

The iSpring RCC7 AK has a 6-stage filtration process. Each step is specially made to filter out specific contaminants.

The first stage is a High Capacity 5 Micron Sediment Filter. It gets rid of sand, dust, rust, and other things visible to the naked eye.

The second and third filters are 5 micron Activated Carbon blocks with large and small carbon granules. They remove all traces of chlorine, including taste and odor. These filters also reduce the cloudiness of water.

A 0.0001-micron Reverse Osmosis membrane makes the fourth stage. It traps 95% of the total solids dissolved in water. The pure water is channeled to the storage tank after this stage.

Stage 5 is a Post Carbon filter that removes any remaining flavor or smell. The sixth and last stage is that of the Alkaline Remineralization Filter.

This reintroduces healthy minerals such as calcium, sodium, potassium, and magnesium that increase the water pH by 0.8 units.


How to assemble / Install iSpring RCC7 AK

Installing the iSpring RCC7 AK is fairly straightforward and can be understood using the installation manual. It contains detailed instructions and labeled diagrams that guide you step by step.

The manual begins with component identification and installation tips. The process is broken down into 8 separate sections. You’ll also find information about maintenance, FAQs, and troubleshooting.

Here’s a video on how to install iSpring RCC7 AK:


Warranty / Repairs

iSpring provides a 30-day money-back guarantee, a 1-year manufacturer warranty, and lifetime tech support for all products.

However, they don’t get information about customers through any portals other than their website. So if you purchase this, you’ll need to register your product here.

Customer Review Analysis

We went through several e-commerce websites and online forums to see what customers think of the iSpring RCC7 AK.

Buyers seem very pleased with their purchase and have given an average rating of 4.6 stars. They have praised the flavor of the purified water among many other features.

Not only is it easy to install, but the instructions are very well written. They make clear sense and can be followed easily. The system itself is also very simple in usage.

It has a special alarm for leaks so you can test if you installed it right. This advanced design makes this system completely foolproof.

Users have also mentioned the durability of this RO system. They’re able to use it for long periods without much trouble. Any problems faced were promptly and effectively dealt with by iSpring’s customer service.

The purified water has even lower TDS levels than good quality bottled water. The extra Alkaline Filter gives a better taste than regular RO water, which some people find bland.

We couldn’t find any negative comments about this system. There are great reviews and that too lots of them.


Pros/Cons of iSpring RCC7 AK

After our extensive analysis of consumer feedback and expert comments, we found the following pros and cons of the iSpring RCC7 AK:


  • Better pH and taste of water
  • Leakage alarm system
  • High capacity
  • Good quality filtration
  • Affordable replacement filters
  • Stylish faucet design
  • Lifetime US-based customer service


  • 1:3 waste water ratio


Recommended accessories with iSpring RCC7 AK

ICEK Ultra-Safe Water Line Connection and Ice Maker Installation Kit

ICEK Ultra-Safe Fridge Water Line Connection and Ice Maker Installation Kit for Reverse Osmosis Systems & Water Filters, 20 ft 1/4" Polyethylene Tubing with 1/4" Push-In and Compression Fittings


iSpring F9K 1-Year Filter Replacement Supply Set

iSpring F9K 1-Year Replacement Supply Filter Cartridge Pack Set for 6-Stage Alkaline Mineral Reverse Osmosis RO Systems


Brieftons Glass Water Bottles

Brieftons Glass Water Bottles: 6 Pack, 18 Oz, Stainless Steel Leak Proof Lid, Premium Soda Lime, Best As Reusable Drinking Bottle, Sauce Jar, Juice Beverage Container, Kefir Kit - With Cleaning Brush



What is the size of hole I’ll need to make in a granite slab for the faucet?

You can use a ½ inch diamond drill to make this hole. Any bigger isn’t required.

Are the plastic components BPA free?

Yes, any surface that comes in contact with the water is completely free of BPA.

How will it “give back” minerals if I have already softened water?

This system does not use any of the minerals from the wastewater. Even if your water is already softened, the Remineralization filter adds fresh minerals. It contains Citrate and Corosex for adding calcium and magnesium respectively.

Can I connect this to my refrigerator?

Yes, you can. Find the necessary fixtures in the section above.

How many times does this system need to be flushed before use?

You can flush 5 liters of water to make it ready for use.

Our Recommendation

The iSpring RCC7 AK is a good investment that doesn’t cost too much. It has plenty of desirable features such as high capacity, stylish design, a leakage alarm, and good flavored water.

The reverse osmosis filtration process is augmented with the Alkaline Remineralization Filter. It makes the pH of purified water less acidic so that it tastes better.

Installation is a piece of cake and very well explained by the company. We recommend buying this filter if you need a good water purifier that fits in the budget.

Kenneth Wright
About Kenneth Wright

Kenneth in Biotechnology graduate and loves to write on topics related to science and technology. He uses his scientific research methodology to grasp concepts and then develop comprehensive articles on them.

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