Ispring Reverse Osmosis Manual

By iSpring Water Systems

The iSpring WCS50KG and RO5004F bundle delivers a complete water solution for your home, combining whole house softening with advanced under sink purification. The WCS50KG whole house water softener removes hardness minerals, preventing scale buildup in plumbing, appliances, and fixtures while extending their lifespan. Its advanced control valve automates backwash and regeneration, with user-friendly features such as low salt reminders and vacation mode. The RO5004F under sink reverse osmosis system features a 6-layer filtration process that removes chlorine, taste, odor, sediment, and up to 99% of over 1,000 harmful contaminants, providing pure, great-tasting water for drinking and cooking. Its compact design saves space, and the modular filter structure makes replacements quick and easy. A water softener replaces hardness minerals like calcium and magnesium with sodium (or potassium) ions through an ion exchange process. While this effectively prevents scale buildup, it also means your softened water contains added salt, which is not ideal for drinking or cooking. That’s why it’s important to pair your water softener with a point-of-use (POU) reverse osmosis (RO) system. An RO system removes the sodium introduced by the softener along with other dissolved solids, ensuring your tap delivers fresh, great-tasting, and low-sodium water. In short, the water softener protects your plumbing and appliances, while the RO system ensures the water you consume is as pure and healthy as possible.

Couldn’t be happier with my decision to install our water softener and reverse osmosis filter. The difference it has made in our water quality is incredible improving so many aspects of our life. Having pure clean water on top is such a luxury and we feel good knowing we are not reliant on moldy brita pitchers or endless water bottles. Our dishes and ice are better and we even noticed a difference in our skin and hair. Also 5 stars to Sean the service rep who helped me track down a sediment filter when they were in short supply. He personally made sure one was sent to me straight from the warehouse and he couldn’t have been more professional and courteous.. David. Wed Apr 22 2026

By iSpring Water Systems

The iSpring US31-NC Under Sink Water Filter System excels in chloramine reduction with its SGS-tested catalytic carbon block, capable of eliminating up to 99.4% of chloramine, far surpassing standard filters. Its 3-stage filtration—PP sediment, GAC carbon, and CTO—removes a wide range of contaminants including dust, rust, harmful chemicals, and PFAS, ensuring premium quality drinking water. Delivering a fast flow rate of up to 1 GPM, this system is ideal for your household’s hydration needs. Designed with a European-style brushed nickel faucet and clear 1st-stage housing, it complies with FDA and NSF/ANSI standards for reliability and quality. The system is easy to install and maintain, with filter replacements recommended every 6 to 12 months. For TDS reduction, consider pairing with an iSpring reverse osmosis system. Backed by a 1-year warranty and lifetime support, the iSpring US31-NC provides exceptional filtration and peace of mind.

Good. Bharatkumar. Caledonia. Thu Jul 17 2025

By iSpring Water Systems

The WSP series spin down sediment filter is the first line defense to your appliances. It protects and extends the life of your standard filters by removing the large dirt, sand, and rust particles before they reach the rest of your plumbing system, including water softeners and expensive appliances. The WSP series is flushable and reusable. It is recommended to flush it regularly (daily or weekly), depending on the water usage, sediment amount and the hardness level. However, as hardness tends to form hard scale that clogs the screen, simple flushes may not be sufficient. When necessary, remove the stainless steel cartridge and clean it with a brush and/or soak it in vinegar. The WSP spin down sediment filter comes with a variety of options in micron size.Smaller microns allow less through, but to get most life and efficiency out of your filters it’s important to only go as small as you need. Differences in water quality and your water pressure affect the performance of the WSP.

Works awesome for removing sediment pre filter thks. Mike. CA. Sun Apr 28 2024

By iSpring Water Systems

The RO5004F-AK alkaline reverse osmosis water filter delivers a superior water filtration experience with its 7-layer system, ensuring clean water for your entire household. Its alkaline remineralization feature adds beneficial minerals back into your water, balancing the pH for healthier, spring-like water. Its tankless design maximizes under sink space while producing up to 500 GPD, enough to fill a cup in just 10 seconds. This high-efficiency under sink RO system features a built-in pump, allowing faster water flow even in areas with low water pressure. The pump operates with reduced noise for a more comfortable experience. This reverse osmosis system under sink also incorporates UV light technology for an extra layer of protection. The filter monitor provides timely reminders for filter replacements. The self-cleaning feature of the RO system under sink can prolong filter life while maintaining optimal filtration performance. In the unlikely event of a leak, the built-in leak-stop valve provides an extra layer of safety, making this RO water filtration system a highly reliable solution for clean water. Backed by our US-based team, it offers lifetime technical support for hassle-free operation.

By iSpring Water Systems

Dedicated 2-year filter (FCF500x4, MRO500, FCB500x2) for iSpring RO500 tankless reverse osmosis system.

Floyd. MI. Tue Jul 15 2025

By iSpring Water Systems

The iSpring CW31-PFBV 3-Stage RV Water Filtration System is SGS-Tested to tackle the most critical water contaminants, combining up to 99.4% PFAS removal and up to 99.99% bacteria/virus reduction in one robust, portable solution. Designed for campers and RV adventurers, this system delivers pure, safe water while eliminating reliance on bottled water.

Your support tech Sean was provided excellent support and helped me resolve the issues I had with filter compatibility on my 7 stage RO system. I had received a non US filter from a supplier and he was quick to point out. I have recommended ISpring to many of my friends because you provide Excellent support after purchase. Thanks!. Dougs. Cedar Rapids. Thu Apr 23 2026

By iSpring Water Systems

3-Stage Whole House Water Filter Replacement Pack with Polyphosphate Anti-Scale, GAC+KDF, and CTO Carbon Block Water Filters, Fits WGB32B-KDS

By iSpring Water Systems

The RCC7P is unequaled in quality, performance, and durability. The system consists of 5-stage, layered filtration built around precision reverse osmosis (RO) technology that removes over 1000+ different kinds of contaminants to provide the best home drinking water filtration available. Unlike some other systems, the combination of both GAC and CTO filters in the 2nd and 3rd stages provides greater protection against harmful chemicals than CTO alone. It features a 75-gallon-per-day capacity RO membrane, which is larger than most in its class and provides the capacity to economically handle the drinking water needs of even a large family. The RCC7P model of the iSpring RCC7 line of products is equipped with a booster pump for situations where inlet/house water pressure is low – below about 40 PSI. The system is quiet and low maintenance. Replacement filters are standard-sized and sold at factory direct pricing. Designed for do-it-yourself installation by most users, the entire system fits nicely under a standard kitchen sink. Installation is straightforward and all parts necessary for installation are included. You are guided by clear, well-organized written instructions, instructional videos, and access to iSpring’s unparalleled technical support.

The packaging is very well made. Each item came in its own packaging. We bought this filtration system for our house in the Caribbean. Our water comes from a well and we want to make sure we filter all the bacteria out before drinking it. This is perfect for what we need.. Gaby. IL. Tue Jan 11 2022

By iSpring Water Systems

RO600 is a next generation system. Accompanied with Modern Technology, it comes with a Smart Panel. When the system is turned on and filtered water is being distributed, the "ON" light flashes. When the system is in standby mode, this indicator remains on. The operating panel has a filter life monitor. When the filter change is required, the machine will beep and the white light will indicate good filter life, while the red light will represent bad filter life.

By iSpring Water Systems

A complete set of replacement filters and membrane for 5-stage reverse osmosis systems, individually wrapped in films for freshness.

By iSpring Water Systems

By iSpring Water Systems

iSpring 1-lever Silver Chrome Drinking Water Faucet

I purchased a 75GPD iSpring RO system with Booster Pump on July 30, 2013 and the equipment has been great. However, about two months ago the faucet in this review started to drip. I cleaned the internals and it didn't help. I have tried to get a replacement part and have been unsuccessful. Can you help me find a part to repair the unit?. Robert. Tue Nov 30 2021

By iSpring Water Systems

Individually wrapped, 2-year high-capacity, top-quality filter replacement cartridge pack for iSpring CRO1000 and standard housings that use 20’’ x 4.5” water filters.

By iSpring Water Systems

iSpring CRO2000 4-Stage Tankless Commercial Reverse Osmosis Drinking Water Filtration System w/ Pumps, Pressure Gauges, and Freestanding Stainless Steel Bracket, for Restaurants and Small Businesses

By iSpring Water Systems

iSpring F2WGB21BM Replacement Water Filters for 2-Stage 10" Big Blue Whole House Water Filter, Fits WGB21BM

By iSpring Water Systems

This 1-year replacement filter pack for the iSpring RO5004F ensures clean, great-tasting water. It includes replacement filters for sediment removal, taste enhancement, and scale prevention, with easy-to-change filters and up to one year of reliable performance.

By iSpring Water Systems

The RO800G-UV under-sink reverse osmosis water filter offers efficient water management with a 2.5:1 pure-to-waste water ratio, conserving up to 750% more water than traditional systems. It removes over 1,000 contaminants, including chlorine and lead, with a potential TDS rejection rate of up to 99%. Advanced features include an LED UV light and a smart flow sensor for optimal performance. Built-in filter life indicators prompt timely replacements, and installation is simplified with integrated-water-route technology and a compact design.

By iSpring Water Systems

The iSpring RCC7P-AK+AATI is a premium 6-stage reverse osmosis system upgraded for maximum performance and convenience. Designed with a built-in booster pump for homes with low water pressure and an alkaline filter for better-tasting water, this system removes up to 99% of over 1,000 contaminants. The all-in-one AATI kit includes a TDS meter, digital filter life timer, fridge/ice maker connection kit, and a sliding mounting kit for effortless filter access. Enjoy clean, mineral-rich water delivered conveniently.

I’ve had the six stage model RCC7P – AK for about a year. I’m just now doing my first filter change, all, but the RO Membrane. I have a bit of an unconventional installation. My system is about 20 feet from the water supply in the sink drain. I’ve had it installed on the floor. But for this filter change, I mounted it to the wall about 12 inches above the floor with support under the filters. That will make future filter changes much easier in the future. Couldn’t be happier with the system. Great system, great tasting water with very effective filtering. My water starts off with a TDS of about 500, water are coming out of the filtered faucet comes in at under 40 TDS :-). Curious One. Mesquite, NV. Thu Feb 05 2026

By iSpring Water Systems

Individually wrapped for freshness. Timely replacement of filter cartridges is essential for the water quality and lifespan of reverse osmosis system. There are 7 pieces of 2.5 in. x 10 in. (industrial Standard) filter cartridges included in this genuine iSpring filter pack. The 1st stage is a 5-micron multi-layer gradient polypropylene snow-white filter blocks sediment, sand, dust, rust and anything that causes turbidity. The 2nd stage is granular activated carbon absorbs unpleasant chlorine, tastes and odors, cloudiness and colors. The 3rd stage is CTO carbon block absorbs any residual chlorine, tastes and odors, plus compounding pre-filters' efficiency and protect RO membrane. The final stage is designed for absorbing any possible residual tastes and odors.

I'm been used those h2o filters for years .very satisfied. Sil. NJ. Wed Mar 04 2026

By iSpring Water Systems

Shop FPC100X2 Replacement Filter

By iSpring Water Systems

Dedicated 2-year filter (FCF500x4, MRO500, FCA500x2) for iSpring RO500AK tankless reverse osmosis system.

By iSpring Water Systems

iSpring CKC2 High Output 2 Stage Countertop Water Filtration Dispenser System- Includes Activated Carbon and Carbon Block Filters

I Absolutely love it love it love it too bad there is only five stars available. This item deserves 10 out of 10 but in this case, I will give it five out of five because five is maximum I can doChilds play to install it❤️. Saleem. Fri Jun 19 2026

By iSpring Water Systems

iSpring 2.8" x 12" 400GPD Water Filter Replacement Cartridge Reverse Osmosis Membrane, fits RE4T

By iSpring Water Systems

iSpring RCC7AK-UVBLK, Alkaline and UV 7-Stage Reverse Osmosis Water Filter System, Clear Housing for Easy Filter Inspection, Reduces PFAS, TDS, Chlorine, Lead, Enhances Water Taste, pH Balanced

[This review was collected as part of a promotion.] Took some time for instalation. Not enough room. Under my sink so had to improvise. Improved my drinking water drastically. Removed the smell and the rusty taste. I look forward to drinking my water now.. Lorettas. Thu May 14 2026

By iSpring Water Systems

The iSpring F2WGB21BPFKS replacement filter set is designed to restore full 2-stage filtration performance in your WGB21B-PFKS whole house system. This compact set includes a GAC + KDF filter that reduces chlorine, lead, mercury, hydrogen sulfide, and unpleasant odors, and a carbon block filter SGS-tested to reduce up to 99% of PFAS, including PFOA and PFOS. Compact yet powerful, these 10” x 4.5” filters are ideal for smaller households or installations with limited space. Together, they also help reduce VOCs, chemical byproducts, and bad taste, ensuring reliable filtration for both city and well water. Each filter is individually sealed for freshness and provides up to 50,000 gallons or up to 12 months of use depending on water conditions. For homeowners seeking compact, high-performance filtration with PFAS protection, the F2WGB21BPFKS offers dependable results. For TDS reduction, pair with an iSpring RO system at the point of use.

By iSpring Water Systems

5 micron 10-in x 4.5-in polypropylene sediment melt blown filters. Dimensions: length 10-in, outer diameter 4.5-in, inner diameter 1-1/8-in, filter life: 10,000 gallons. Max operating pressure: 60 psi. CTO filter features usually used as second stage for the whole house filter. The carbon block filter is manufactured by continuous extrusion process. It consists of a high quality virgin premium performance activated carbon. It is effective in reducing free chlorine, bad taste, odor THM, organics, hazardous chemicals, and pesticides. Depending on inlet water quality or flow rate, it needs to be replaced every 6 months or 18,000 gallons of water. Fits standard 10 inch whole-house water filters.

The replacement filters seem to be very reasonable.. Jonathan. Thu Apr 16 2020

By iSpring Water Systems

iSpring F6K75 NSF Certified Replacement Under-Sink Water Filters, 6-Stage Reverse Osmosis RO Water Filtration Systems with Alkaline Mineral Filter, 6-months Replacement Supply Set, 6 Count (Pack of 1)

[This review was collected as part of a promotion.] I've had this system for 5 years and it is awesome. Sharon. 26169 U S Hwy 52. Mon Mar 16 2026

By iSpring Water Systems

iSpring Reverse Osmosis RO DI Replacement Filter 10" set for Reef/Aquarium - from 123filter

By iSpring Water Systems

iSpring CU-A4 Ultra Filtration 7-piece Filter Pack

Great filters and great support, thanks Nick. Anonymous. Wed Jun 24 2026

By iSpring Water Systems

An anti-scale water filter system that protects your pipes and household appliance from scale, corrosion, and more - The FWDS150K patented scale Inhibitor effectively sequesters calcium and magnesium. It also inhibits corrosion, particularly iron, steel, galvanized, copper, and lead, by coating the surface of your pipes. The coating serves as a protective layer that makes it harder for bio-film to form. It also helps to stabilize chlorine as the chlorine will not react with the metal pipe if the coating exists. This water filter has a capacity of 250,000 gallons of water filtration.

Exactly what we were looking for in our new house! Price point is amazing compared to others that we looked at.. Anonymous. Thu May 21 2026

By iSpring Water Systems

Shop F4RO5004FAK 1-Year replacement Filter Pack for RO5004F-AK now!

By iSpring Water Systems

iSpring RO1000-ORB Tankless Reverse Osmosis Water Filtration System

By iSpring Water Systems

iSpring F7-CTO 1-Year Replacement Filter Kit for 5-Stage Reverse Osmosis, 7-Pack

Very easy to install. Works efficiently and our tap water tastes great. Shipment delivers in just a couple of days.. Larry. Sat Mar 21 2020

By iSpring Water Systems

This 2-year replacement filter pack for the iSpring RO5004F includes sediment, carbon block, anti-scale replacement filters, and a 500 GPD RO membrane, ensuring clean, great-tasting water. It removes up to 99% of contaminants, prevents scale buildup, and offers quick, easy-to-change filters for up to two years of reliable performance.

By iSpring Water Systems

At iSpring, we look beyond technology to make high-quality drinking water accessible for all households. We provide our customers with professional water solutions to any water concerns you may have.

It works great and is much easier than going to the store to buy filtered water. My water is considerably better and the installation was great.. Andrew. Tue Jan 21 2020

By iSpring Water Systems

iSpring - Replacement Cartridge for CT10 Countertop Multi Filtration Drinking Water Filter Dispensers

All in all I'm happy with the filter, however, the last time I needed to purchase one, they were out-of-stock everywhere with no notation on the website as to when they would be available again. This makes me nervous as to what might happen in the future if this filter becomes unavailable for good. Now I know to always have a back-up ready. The new filter I recently purchased looks different from what is pictured on the website as well as what I previously purchased. It looks as if the filter components don't quite fill the container, which makes me wonder if all the water is actually processing through the different filters.. A. Sat Dec 30 2023

By iSpring Water Systems

Silver

iSpring bottleless water filter dispenser has the dual functions of both a water purifier and a hot water dispenser. It uses a 4-stage filter to effectively remove harmful contaminants and the unpleasant smell of residual chlorine. What's more, it also improves the taste of water while still effectively retaining minerals that are beneficial to the human body. With three temperature settings, you can enjoy fresh ice water, warm water, and hot water at any time you like!

By iSpring Water Systems

RO1000-BN Tankless Reverse Osmosis Water Filtration System

By iSpring Water Systems

iSpring CU-A3 Ultra Filtration 5-Filter Annual Replacement Pack

By iSpring Water Systems

[This review was collected as part of a promotion.] I am so happy that I was accepted into this program to review this under the sink Water filtration system! It has made my faucet Walter much safer for drink by removing those horrible minerals! It was rather hard to install though, I had to hire a plumber to install it on my kitchen sink.. Radiahg. Mon Mar 02 2026

By iSpring Water Systems

Clear

The iSpring CKC1C-PB/CKC1-PB countertop water filter is a compact yet effective solution for improving the taste and safety of your tap water. It features a high-performance filter cartridge made with advanced MetSorb media, which efficiently reduces heavy metals like lead, arsenic (III & V), mercury, and cadmium. This filtration media is tested by SGS, offering reliable protection while helping to retain healthy minerals. Designed for convenience, this countertop water filter connects directly to most kitchen sink faucets in minutes—no tools or permanent installation required. Its BPA-free, food-grade construction ensures safe daily use, and the system delivers consistent performance for up to 12 months or 7,000 gallons, depending on water conditions. Ideal for apartments, rentals, and small kitchens, CKC1C-PB/CKC1-PB drinking water filter provides a space-saving, budget-friendly alternative to under-sink systems without sacrificing performance. For reduction of Total Dissolved Solids (TDS), pair this unit with an iSpring Reverse Osmosis system such as the RO500 or RCT600 for complete purification at the point of use.

By iSpring Water Systems

The ideal water filter system includes a sediment filter as the first stage to remove the larger particles of dirt or sediment before they can reach and clog your finer filters and appliances. The WSP-Series aims to fill this role by offering the stainless steel mesh in various micron sizes, allowing you to control what size particles are allowed to pass into your home or following filters. This helps prevent large particles of dirt from clogging any finer filters you may already have in place. The WSP also includes a powerful anti-scale and corrosion agent called siliphos. Siliphos is a water treatment compound, a glass-like Polyphosphate containing Sodium, Calcium Magnesium and Silicate, formulated specifically for the treatment of water problems. The 1-inch outlet MNPT fitting provides a maximum 20 GPM flow rate, and the WSP-Series also features 3/4 inch NPT threads on the inlet and outlet. Specifications: Mesh pore rating: 50, 100, 200, 500, 1000 microns Dry weight: 1 lb Dimensions: 3. 5" width x 9" height Suitable temperature range: 40 - 100 °F Suitable pressure range: 20 - 90 psi

By iSpring Water Systems

iSpring MC5 50GPD Reverse Osmosis Membrane, 1.8" x 12", Blue

Love that it works great .and easy to replace.my water tastes better then bottle water. Well worth the money.and we don't have to buy bottled water anymore.love having perfect water on tap .and it works great with the ice machine.we get Cristal clear ice .. David. Sat Dec 16 2023

By iSpring Water Systems

Introducing the WSP100ARB, a flushable and reusable filter that creates a multi-layer gradient filtration system, extending filter life. With upgraded capacity, it effectively filters particulate, impurities, sediment, rust, and floating objects. Built with pressure-resistant materials, easy installation, and an integrated auto flushing module, it offers maximum flow rate of 25 GPM and includes parts for installation and maintenance.

It worked. Put it in the basement just after the main vavle and it saves the GE replacement filters.. Janet. Fri Mar 06 2020

By iSpring Water Systems

iSpring MCRO1000 1000 GPD Reverse Osmosis Membrane, Fits CRO1000

By iSpring Water Systems

Upgrade your drinking water experience with the iSpring RCD100 Countertop Reverse Osmosis Water Dispenser bundled with the F7RCD100 2-Year Replacement Filter Set. This compact, tankless RO system combines convenience, performance, and style — no installation required. Featuring advanced 5-stage filtration and UV-C sterilization, it removes up to 99% of contaminants, including chlorine, lead, PFAS, PFOS, and heavy metals. Enjoy hot water at the touch of a button, with instant heating technology offering multiple temperature options. The included up to 2-year filter pack ensures long-lasting purity and minimal maintenance, making it the perfect choice for homes, offices, and small spaces.

I bought the RC100 about a year ago and the unit I have has been great - it does everything I've hoped and the little unit serves our family well. Recently, our unit stopped working after about 1 year and it just wouldn't turn on. I contacted iSpring support and Nick was super responsive and helpful to work with me. This reminds me of a key reason i decided to purchase this iSpring unit - during my research I read about the company's excellent support and that it's based in the USA, and Nick's proven the excellent support to be true! For anyone considering purchasing a RO system, keep this in mind. Buying from a company with a US-based support team could be a huge differentiator if you ever need help.. Steven. San Jose, CA. Sat Mar 28 2026

By iSpring Water Systems

Exactly what I ordered / fit perfect.. Robert. Sat Dec 30 2023

By iSpring Water Systems

The FP500 5-micron Sediment water filter cartridge is your first line of defense for clean water. Built from durable polypropylene, it effectively removes fine particles like sand and rust while protecting and prolonging the life of other filters in your system. With a lifespan of up to 6 months, it ensures consistent and reliable filtration performance.