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Ispring RCC7 Filters: RO Installation Guide

ISpring is a company driven by quality and research, producing high-performance filters that are affordable. They produce some of the best reverse osmosis filters on the market.

The iSpring RCC7 is not a whole house reverse osmosis system, but the claim is it offers the best water quality and an affordable price. But does it really meet its promises? We take a look at this popular product and do our own “iSpring RCC7 Review” for you!

Ispring RCC7 Filters_ RO Installation Guide

In this article, we’ll help you figure out if it’s worth buying the under-sink reverse osmosis water filter before you go and spend your hard-earned cash.

iSpring RCC7 Review

“iSpring RCC7 makes the list of the bestseller in RO systems family because of its quality, durability and very reasonable price. It is an inexpensive way to have filtered drinking water throughout your entire house. But the great price is just one of the reasons we love this filter system. 

The team at iSpring has a long history of providing customers with top-notch services and products.

But, being a customer-oriented company they are, Spring quickly upgraded their systems and have not had problems with the latest model. This is great news for customers who may be looking into buying an iSpring RCC7 water filter from this manufacturer as it means that there’s very little chance of receiving a faulty product!


iSpring RCC7 Reverse Osmosis System

1. iSpring RCC7 Reverse Osmosis System

High Capacity Under Sink 5-Stage Reverse Osmosis Drinking Filtration System and Ultimate Water Softener, 75 GPD, Brushed Nickel Faucet

  • iSpring RCC7, NSF Certified, High Capacity Under Sink 5-Stage Reverse Osmosis Water Filter System with Faucet and 3-Stage Post Carbon Filter.
  • The iSpring RCC7 reverse osmosis filter system is a high capacity under sink water filter that removes up to 99% of over 1, 000 contaminants from your drinking water using a five stage process.

Let’s have a quick look at its capability, performance, and functions.

It is capable of producing 75 gallons of water per day. And it is a well-known fact that the reverse osmosis filtration system wastes some amount of water before producing purified water. Its water waste ratio is acceptable, as it wastes 3 gallons of water to produce 1 gallon.

The iSpring RCC7 is an innovative water filtration system that removes pollutants from feed water to give you pure, fresh clean water to your entire family. The 5-stage process filters out more than 1000 impurities, making every sip pure and clean. While it does have a shorter lifespan for its filters, they are relatively inexpensive compared to other filters on the market so replacing them isn’t as costly as you might expect!

The installation is a piece of cake. You don’t need to call any professional. You can do this by yourself within 1-2 hours.

Water Production

This includes removing up to 98% of lead from the water as well as chlorine taste and odor, asbestos, fluoride and more. Like other RO- water filters, Water production depends upon the water pressure and the water temperature.

Water Production

iSpring RCC7 is rated for producing 75 Gallons of purified water. It can produce less or more than 75 gallons of water but it is a very efficient system if you have typical water pressure.

To produce this rated amount of water, your water pressure should be ideally equal to or more than 45 psi. Almost every household has water pressure between 45 to 55 psi.

How to Check Your Water Pressure at Home?

It is recommended to the water check your pressure by using an inexpensive water pressure gauge. Or if you don’t want to spend a few dollars, you can check your water pressure by placing a 2-gallon bucket under a tap and timing how long it takes to fill completely with the tap on full.  A good flow rate is 6 gallons per minute, so your bucket should be completely full in 20 seconds or less. Anything above 25 seconds is a slow flow rate and you may have low water pressure. 


All of the inline RO water filter systems waste some water in the process of filtration, it actually takes a few gallons of water to produce a gallon of purified water. And the water waste ratio determines the Efficiency of the RO-system. A lower water waste ratio indicates higher efficiency.

Even the best RO water filters waste water. A residential reverse osmosis system with water waste below or equal to 3-4 Gallon is considered an efficient system.


iSpring RCC7 wastes 3 gallons of water before producing a single gallon of purified water. This water waste ratio is acceptable, as it is below 3 gallons.

Water waste can increase your cost of ownership. Because more water waste means more water consumption. Its water waste is better than most of the systems available in the market. But still, you can reduce this amount of water waste to 1 gallon by using the permeate pump.

Permeate pump is capable of increasing the efficiency of up to 80% and also the productivity by up to 50%.

Inside the boxSpecification

In order to make installation even easier, the iSpring RCC7 comes complete with pretty much everything you need to install it.

  • Machine head with RO housing and 5th stage
  • 3 x Pre-filter housing
  • Premium RO-Membrane
  • 3.2 Pressurized storage tank
  • Housing wrenches
  • 4-color tubings
  • Spare fitting & O-ring
  • Feed water adapter
  • Faucet and mounting bracket
  • Drain saddle and water detector
  • Model: RCC7
  • Weight: 25 pounds
  • Dimension: 14.5 x 5.2 x 17.5
  • Water pressure: 40-80 psi
  • Manufactured: USA

Filtration Process

iSpring RCC7 is a 5-stage reverse osmosis undersink system that can remove up to 98% of contaminants from your water. The iSpring has the capability of removing more than 1000 different types of contamination, making it perfect for those who are looking for cleaner and healthier drinking water in their home or business.

In addition to being able to provide great tasting filtered drinking water right at your kitchen sink, this unit also provides you with plenty of peace-of-mind knowing that every drop is safe thanks to rigorous testing by NSF International Standards Organization (NSF). What’s more? In order to make installation even easier, all necessary fittings come included!

Filtration Process

The quality of water that comes out of your tap is a result of the work in all stages of the filtration process. The first stage is to remove sediment and debris, then it will be treated for any algae or bacteria found while finally disinfecting the supply with chlorine so when you turn on your faucet it’s pure enough to drink without worry about contaminants.

Let’s have a look:

How Does Its Filtration System Work?

The filtration process is identical to that found in other expensive 5-stage reverse osmosis systems.

The water first goes through the Pre-filters. The First 3 stage filters are known as pre-filters.

1st Stage: Responsible for removing Sediments, dust, and the rust from water

2nd Stage: It is GAC filters that remove the taste, odor, and chlorine.

3rd Stage: Ensures that water is completely pure from odors and chlorine and other particles. It removes all the possible particles that previous stage filters may leave in the water. It helps the RO-Membrane (4th stage) to perform its operation efficiently and improves the life of the RO filter.

After Pre-filters, water is treated By RO-Membrane

4th stage: At this stage water passes through the RO-Membrane. The RO-Membrane is capable of removing contaminants down to 0.001 microns. It removes the sodium, arsenic, calcium, potassium, and many other larger contaminants from the water.

Now the Post-filters come into an action

5th stage: The carbon filter is a key component in ensuring that fresh, clean water reaches your home. It removes bad tastes and odors from the tank to provide you with delicious drinking water at all times of the day.

Filter Replacement

RO Systems: How Often Should You Replace Your Filters?

RO systems are an excellent investment to have in place, but there is one thing that people tend not think about. When do I need to change the filter and what can it cost me if I forget or put off replacement for too long!

It’s important when purchasing a RO system that maintenance costs be taken into account as well because they will increase both over time and with usage of the machine itself. So before making any decisions on which kind of filtration system you want installed at home first ask yourself this question – How often will my Reverse Osmosis Filters be replaced?

Filter Replacement

The quality of filters in the iSpring RCC7 is really good so you don’t need to change the filters too frequently.

Although, it is recommended to change the filters after 6-12 months and RO-Membrane has to be changed after every 2 years.

But keep in mind, more contaminated water can reduce the lifespan of the filter of any Reverse osmosis system.

One feature that is unique is the sediment filter has a transparent housing, which really helps you to identify the time when filters need to be replaced. The filter replacement process is straightforward but is slightly more involved than some other systems.


The installation process is simple. Everyone with some basic DIY skills can install it under the counter of your kitchen sink. It should only take you 1-2 hours.

Even if you are not experienced with any kind of water filter installation, you can go through the instructions manual. Although, the instructions manual is not well-written and concise. That’s why it is recommended to go through the installation video available online. This video will walk you through the whole process of installation.

If still, you face some problems you can contact customer support. The customer support is very responsive. You will get helpful assistance from them for free.


  • Replacement filters are inexpensive
  • Responsive Customer Support
  • Efficient water filter system
  • Water Leakage Alarm
  • NSF Certified Components
  • Stylish faucet
  • Limited warranty of 3 years
  • Ideal water production capacity


  • Vague instructions manual
  • Filters have the relatively shorter lifespan

Final Thoughts

We can’t recommend the iSpring RCC7 highly enough! If you’re looking for a water system that is reliable and easy to use, then this iSpring Reverse Osmosis System offers the best of both worlds. The customer satisfaction with the components on this model gives it an edge over other models in its price range because they are not only durable but also more efficient at removing contaminants from your drinking water.

For those who have concerns about how long filters last before needing to be replaced, don’t worry! This machine won’t break your bank either way since replacement parts are affordable too- even if some need replacing more often than others.

RCC7 Series

iSpring is dedicated to providing quality reverse osmosis systems using their innovation and the technology they have introduced many other models too in RCC7 Series.

iSpring RCC7AK is the next model in the series after iSpring RCC7 which is almost identical with the only change being in the filtration stages. There is the addition of a Remineralization stage in iSpring RCC7AK.  You can explore more about this system by reading our iSpring RCC7AK Review.

iSpring RCC7AK-UV is also part of this series. It includes Remineralization and the UV light in its additional filtration stages for added protection from viruses.

Hopefully, we have covered every detailed feature of this unit, to help you in making the final decision.

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