rainsoft water system

RainSoft vs EcoWater – Which Water System Reigns Supreme?

Looking for a top-notch drinking water system? Great choice! Clean, filtered water is essential for your health, cooking, and daily routine.

Today, we’re comparing three leading products: the Ultrefiner II by RainSoft, the Hydrefiner by Home Water Filtration Systems, and the ERO 375 Reverse Osmosis by EcoWater Systems.

Each offers unique features to help you find the perfect fit for your home. Home water filtration has evolved from simple carbon filters to advanced systems like reverse osmosis, ensuring contaminants like chlorine, lead, and bacteria are removed.

Enjoy pure, refreshing water from your tap, reduce plastic waste, and save money in the long run.

In the following sections, we’ll review each system’s features, benefits, and potential drawbacks. Whether you prefer high-capacity or advanced technology, you’ll have all the info you need to make an informed choice. Let’s dive in!

Ultrefiner II Drinking Water System, Purifier | RainSoft

Ultrefiner II Drinking Water System, Purifier | RainSoft

When you’re looking for a reliable solution to improve your drinking water quality, the Ultrefiner II Drinking Water System by RainSoft stands out as a top contender. This system is specifically designed to provide exceptionally purified water for drinking and cooking. Whether you’re using tap water to make coffee, cook pasta, or simply hydrate, the Ultrefiner II ensures that every drop is as clean and safe as possible.

One of the key reasons you’ll find the Ultrefiner II appealing is its multistage filtration system. This product doesn’t skimp on quality or efficiency, utilizing advanced filtration technology, including reverse osmosis and carbon block filtration, to remove a wide range of contaminants. It is especially effective against microscopic particles, chlorine, lead, and other harmful substances, ensuring that the water coming out of your faucet is pure and refreshing.

Moreover, this system boasts cost efficiency by using only three filters, significantly reducing maintenance expenses compared to the industry standard of five filters. Additionally, its environmentally-friendly design minimizes waste as only the cartridge needs to be replaced, rather than the entire canister.

The purpose of the Ultrefiner II is straightforward but vital: to provide you with the cleanest, safest water for your consumption. Here are some of the system’s standout features:

  • Multistage Filtration: The Ultrefiner II uses a combination of reverse osmosis and carbon block filtration to target and remove contaminants like chlorine, lead, chromium, and volatile organic compounds (VOCs).
  • Design & Installation: Installed under the kitchen sink, the system includes a contemporary, lead-free RainSoft faucet, available in brushed nickel or chrome, blending seamlessly with modern kitchen aesthetics.
  • Cost Efficiency: With only three filters, it reduces maintenance costs.
  • Green Design: Eco-friendly; you only dispose of the cartridge, not the entire canister.
  • Certifications: Tested and certified by NSF International and the Water Quality Association, with certain models receiving the nod from California’s Department of Public Health.
  • Customization: Tailor the system to meet your specific water quality concerns, facilitated by RainSoft dealers.
  • Additional Services: Access to free in-home water tests to identify and tackle unique water issues you might face.

When assessing the overall quality of the Ultrefiner II, it’s clear that commitment to excellence underpins its design. Made for durability and long-term use, the system comes with a limited lifetime warranty against manufacturing defects, ensuring that your investment is protected. The system’s multiple certifications further attest to its reliability and performance.

Additionally, the Ultrefiner II enhances the taste of beverages and soups, making it not just a health-conscious choice but also one that adds to your culinary experience. The system’s capability to provide low sodium water is another plus for those concerned about sodium intake.

  • Exceptional Filtration: High efficiency in removing a wide range of contaminants.

  • Cost-Effective Maintenance: Requires only three filters, making it less costly to maintain.

  • Eco-Friendly: Minimal waste with cartridge-only disposal.

  • Versatile Designs: Modern faucet designs in brushed nickel or chrome to suit your kitchen.

  • Comprehensive Certifications: Fully tested and certified by respected bodies like NSF International and the Water Quality Association.

  • Customizable: Tailor the system to your specific water needs.

  • Free Testing Services: Complimentary home water tests for personalized solutions.

  • Initial Cost: The initial investment may be higher compared to basic filtration systems.

  • Installation Requirement: While the system is designed for under-sink installation, some might find the installation process challenging and might need professional assistance.

  • Filter Replacement: Although less frequent, replacing the cartridges can still be a hassle for some users.

The Ultrefiner II Drinking Water System by RainSoft offers a comprehensive solution for those serious about the quality of their drinking water. From its advanced filtration capabilities to its sleek design and eco-friendly approach, it’s a valuable addition to any modern kitchen. While it may require a higher initial investment and some installation effort, the benefits it provides make it well worth considering for your home.

Home Water Filtration Systems – Hydrefiner Drinking Water Systems

Home Water Filtration Systems - Hydrefiner Drinking Water Systems

When you think about your daily water intake, cooking meals, and preparing beverages, the Hydrefiner Drinking Water System emerges as a perfect fit. This system is primarily designed to provide high-quality water for drinking, cooking, and various beverages, ensuring every drop you consume is pure and clean. From quenching your thirst with a refreshing glass of water to brewing the perfect cup of coffee or tea, this system aims to elevate your everyday activities by enhancing water quality.

The Hydrefiner Drinking Water System stands out because of its excellent performance and convenient design. One of the most alluring aspects is how it seamlessly integrates into your kitchen, fitting snugly under the sink. The system uses advanced carbon block filtration technology to reduce chlorine and impurities, which not only improves the taste but also ensures the water is safe to consume. Furthermore, its eco-friendly nature, by eliminating the need for bottled water, also makes it a winner in our books.

The primary purpose of the Hydrefiner Drinking Water System is to deliver clean and better-tasting water right from your kitchen sink.

Key Features:

  • Compact Design: Specifically designed to fit under your kitchen sink, making it an economical and space-saving water filtration solution.
  • Carbon Block Filtration: Effective at reducing chlorine and various impurities from your water, resulting in crisper and cleaner tasting water.
  • Large Capacity: Can produce up to 830 gallons of filtered water before needing a cartridge replacement, offering longevity and fewer interruptions.
  • Built to Industry Standards: This product adheres to high-quality industry standards and comes with a limited warranty for added peace of mind.

These features combine to provide a streamlined and efficient experience, ensuring you have access to premium quality water at all times.

From the design to the performance, the Hydrefiner Drinking Water System reflects a commitment to overall quality. The engineering behind it is robust, adhering to industry standards that guarantee longevity and reliability. Many customers have praised its effectiveness at consistently delivering improved water quality, backed by strong customer support and product warranties. The reputation of RainSoft further emphasizes the trust that homeowners can place in this system.


  • Space-Saving Design: Its compact build makes it an ideal fit for under-the-sink installation, blending effortlessly into most kitchens.
  • Effective Filtration: The carbon block technology significantly reduces chlorine and impurities, enhancing water quality.
  • Eco-Friendly: Helps reduce the environmental impact by cutting down on bottled water usage.
  • Durability: With the capacity to filter up to 830 gallons before cartridge replacement, it boasts an impressive lifespan.
  • Customer Support: RainSoft offers extensive support, including free water tests and consultations, and a multitude of resources to assist in any situation.


  • Initial Cost: While the system is economical in the long run, the upfront installation cost might be a consideration for some.
  • Maintenance: Periodic cartridge replacements are necessary, which can require a small amount of ongoing effort and expense.
  • Specific Use: This system is ideal mainly for improving drinking and cooking water, whereas whole-house filtration needs may require additional systems.

By weighing these pros and cons, you can see that the Hydrefiner Drinking Water System offers a reliable and efficient solution for home water filtration, adding value to your daily culinary and hydration experiences. The combination of high performanceenvironmental benefits, and trusted quality makes it a compelling choice for many households.

If you want to enjoy clean, fresh water at its finest, the Hydrefiner Drinking Water System is a great place to start.

ERO 375 REVERSE OSMOSIS – EcoWater Systems

ERO 375 REVERSE OSMOSIS - EcoWater Systems

When it comes to securing high-quality water for drinking and cooking, the ERO 375 Reverse Osmosis Drinking Water System by EcoWater Systems stands out as a top contender. Designed to filter water sourced from both well or municipal water supplies, this system ensures that you and your family have access to purified water at all times.

We appreciate the ERO 375 for its combination of efficiencyease of use, and expandability. The product is impressive not only for the quality of water it produces but also for its user-friendly design. Features like enclosed filters that maintain cleanliness and easy replacement mechanisms make maintenance incredibly convenient. Furthermore, the system is certified to NSF/ANSI Standard 58, giving you peace of mind about its performance and safety.

The ERO 375 serves a dual purpose of providing excellent water quality for both drinking and cooking. It is suitable for households that rely on well water or municipal water, thus catering to a broad range of needs.

  • Industry-rated 50 gallons per day membrane production rate – although the actual production rate may vary depending on your home’s conditions.
  • Enclosed filters – these add an element of cleanliness and make the filters easy to replace.
  • Ease of filter replacement – simply turn the filter 1/4 turn to shut off water and release.
  • NSF International Certification – ensures adherence to NSF/ANSI Standard 58 for performance and safety.
  • Expandable system – allows for additional filters and upgrades such as a 75 gallons per day membrane or a permeate pump system.

The overall quality of the ERO 375 is excellent. From its robust construction to its effective filtration capabilities, this system has been designed with the user in mind. The high-grade thin film composite membrane and high-quality carbon filters ensure that the water is not only safe to drink but also tastes great.

  • Feed water pressure: 40-100 psi
  • Feed water temperature: 40-100°F (4-38°C)
  • Maximum Total Dissolved Solids (TDS): 2,000 ppm
  • Membrane rejection of TDS: 92%
  • Product water production rate: 17.4 gallons per day
  • Feed water pH limits: 4-11
  • Storage tank capacity: 4 gallons

The system’s capability to operate across a wide range of water pressures and temperatures while maintaining a high rejection rate of TDS (92%) speaks to its versatility and effectiveness.

  • High-Quality Water: The ERO 375 delivers water that is clean, safe, and tastes great.

  • Ease of Maintenance: With enclosed filters and simple replacement mechanisms, maintaining the system is straightforward.

  • Certification: NSF/ANSI Standard 58 certification assures you of the system’s quality and safety.

  • Expandable and Customizable: The system’s expandable nature means you can tailor it to meet your specific needs, from increasing filter capacity to upgrading membranes.

  • Attracive Faucets: Options for chrome or brushed nickel faucets add a touch of style to your kitchen setup.

  • Production Rate: Although industry-rated at 50 gallons per day, the actual production rate may be lower depending on specific conditions, with a measured output of 17.4 gallons per day.

  • Initial Cost: Initial investment can be higher compared to some other filtration systems, but its benefits can justify the expense.

The ERO 375 Reverse Osmosis Drinking Water System by EcoWater Systems is a fantastic option when you’re looking for a reliable and effective water filtration system. It’s especially ideal if you need a system that can adjust to different water supplies and is easy to maintain. With certifications ensuring its efficacy and a design that simplifies upkeep, this system helps guarantee your family enjoys high-quality water every day.

ERO 375 REVERSE OSMOSIS – EcoWater Systems

ERO 375 REVERSE OSMOSIS - EcoWater Systems

The ERO 375 Reverse Osmosis Drinking Water System by EcoWater Systems is designed to provide you with high-quality, purified water for both drinking and cooking. With its efficient filtration process, this system is adept at removing impurities and contaminants, ensuring that the water you consume is both clean and safe.

What sets the ERO 375 Reverse Osmosis apart from other water filtration systems is its combination of advanced technology and user-friendly features. We appreciate its ability to deliver industry-rated performance while maintaining ease of use, thanks to the simple 1/4 turn mechanism for filter replacements and the enclosed filters, which help keep the system clean.

Further, the potential for system upgrades, including a 75-gallon per day membrane and additional filter options like a higher capacity sediment or VOC rated filter, makes the ERO 375 adaptable to specific household needs. The availability of multiple faucet styles and optional electronic indicators for filter replacements also add a touch of customization and convenience.

The primary aim of the ERO 375 is to supply your home with clean, purified water. Here are some key features that make this possible:

  • 50 gallons per day membrane production rate: Although actual production may vary, this industry-rated capacity ensures a consistent supply of purified water.
  • Enclosed filters with a 1/4 turn mechanism: The design simplifies filter replacements, making it cleaner and easier for you.
  • NSF/ANSI Standard 58 certification: This certification verifies the product’s effectiveness in removing contaminants.
  • Optional faucet styles: Available in chrome or brushed nickel, you can choose a style that complements your kitchen.
  • Electronic faucet option: This can indicate when it’s time to replace filters or the membrane, ensuring your system is always running optimally.
  • Expandable system: Allows for additional filters such as a higher capacity sediment filter or a VOC rated filter.
  • Upgrade to 75-gallon per day membrane: For households requiring a higher output, this upgrade is a beneficial feature.
  • Permeate pump system adaptor kits: These kits are available to improve flow rates.

When considering a reverse osmosis system, reliability and effectiveness are key metrics. The ERO 375 excels in both areas. EcoWater Systems has designed this product with high standards in mind—from the rigorous NSF/ANSI Standard 58 certification to its robust construction. The system’s components, including the storage tank with a 4-gallon capacity and its automatic shut-off valve, are built to last, providing you both quality and peace of mind.

Moreover, the system operates under a wide range of feed water conditions, tolerating TDS levels up to 2,000 ppm, and pH levels from 4 to 11, making it versatile for various water sources.


  • High production rate: With a 50 gallons per day rating, this system can meet the demands of most households.
  • Ease of maintenance: The 1/4 turn mechanism for filter replacements simplifies upkeep, and the enclosed filters maintain hygiene.
  • Certification and reliability: Certified to NSF/ANSI Standard 58, you can trust its performance.
  • Customizable: Various upgrade options and faucet styles allow you to tailor the system to fit your needs.
  • Advanced features: Optional electronic faucet for filter replacement alerts helps maintain the system’s efficiency without hassle.


  • Initial cost: The advanced features and high build quality might reflect in a higher initial investment compared to basic models.
  • Actual daily production rate: The actual production might be less than the advertised 50 gallons per day, depending on your specific water conditions.
  • System size: The unit, including the storage tank, takes up significant space and might not be suitable for smaller kitchens.
  • Maintenance dependencies: While the electronic faucet alerts are useful, they also mean you’ll be reliant on these indicators for timely maintenance.

In sum, the ERO 375 Reverse Osmosis Drinking Water System by EcoWater Systems offers a blend of reliability, ease of use, and advanced features that make it an excellent choice for families looking for a robust water purification solution.

Product Comparison

When it comes to choosing the right drinking water system for your home, you want to ensure you’re getting the best quality and value for your specific needs. Here, we’ll compare four popular products: the Ultrefiner II from RainSoft, the Hydrefiner II from RainSoft, and the ERO 375 Reverse Osmosis by EcoWater Systems.

Key Specifications

Let’s dive into the crucial details of each product to see how they stack up:

Feature/Specification Ultrefiner II Drinking Water System Hydrefiner II Drinking Water System ERO 375 Reverse Osmosis – EcoWater Systems (x2)
Filtration Process Multistage (RO, Carbon Block) Carbon Block Reverse Osmosis, Carbon Block
Water Production Rate Not Specified Up to 830 gallons per cartridge 50 gallons/day (industry-rated), 17.4 gal/day (actual system rate)
Max TDS Rejection Not Specified Not Specified 92%
Operating Pressure 40-100 psi Industry Standard 40-100 psi
Operating Temperature 40-100°F (4-38°C) Industry Standard 40-100°F (4-38°C)
Storage Capacity Not Specified Not Specified 4 gallons
Faucet Options Brushed Nickel, Chrome Industry Standard Chrome, Brushed Nickel
Additional Filters/Options Various Configurations Not Specified VOC Filter, High-Flow Membrane, Permeate Pump
Cost Efficiency (Filter Lifecycle) 3 Filters, Reduces Maintenance Standard Industry Maintenance Enclosed Filters, 1/4 Turn Replacement
Environmental Impact Green Design (Cartridge Only) Eco-Friendly (Reduced Bottled Water) Not Specified
Certifications NSF, Water Quality Association Limited Warranty NSF/ANSI Standard 58
Warranty Limited Lifetime Limited Warranty Not Specified
Customer Support Extensive, In-home Water Test Locates Dealers, Free Water Testing Local Service in Central California

A Closer Look

Ultrefiner II Drinking Water System – RainSoft

The Ultrefiner II stands out with its premium, multistage filtration process and emphasis on cost efficiency and environmental friendliness. It offers configurations to tackle specific water quality concerns and features a stylish faucet choice, ensuring both functionality and aesthetic appeal. The system is fully certified and comes with a limited lifetime warranty.

Hydrefiner II Drinking Water System – RainSoft

A more compact and economical choice, the Hydrefiner II uses carbon block filtration and produces up to 830 gallons before requiring a cartridge change. It’s designed to meet industry standards with an emphasis on providing high-quality water for all your drinking and cooking needs, backed by a limited warranty.

ERO 375 Reverse Osmosis – EcoWater Systems

The ERO 375 has a focus on reverse osmosis, offering high-quality purification suited for both well and municipal water supplies. It comes with optional higher capacity filters and membrane upgrades to increase efficiency. With both chrome and brushed nickel faucet options and certifications from NSF/ANSI, it’s a versatile system for various household needs.

Expanded Offerings

Both RainSoft and EcoWater Systems offer additional services and products, such as whole-house conditioning systems and air purification solutions. EcoWater, specifically, provides localized service in Central California, while RainSoft offers extensive customer support and free in-home water testing to address any concerns you may have.

Conclusion Summary

Reviewing the four drinking water systems – Ultrefiner II from RainSoft, Hydrefiner, and the ERO 375 Reverse Osmosis by EcoWater Systems, we notice distinct advantages and some drawbacks for each. Here’s a comprehensive look at each product and a recommendation based on specific needs:

Ultrefiner II Drinking Water System, Purifier | RainSoft

You will appreciate the high-quality filtration and the effective elimination of contaminants in the Ultrefiner II system. This system excels in particularly tough water conditions, ensuring clean and safe drinking water for you and your family.


  • It can be relatively expensive compared to other systems.
  • Installation might require professional help, which can add to the initial cost.

Recommendation: Ideal for households with highly contaminated water, where investing in a robust system is a priority for health and safety purposes.

Home Water Filtration Systems – Hydrefiner Drinking Water Systems

The Hydrefiner systems stand out for their simplicity and dependability. With straightforward installation and maintenance, you won’t find it difficult to integrate into your daily routine.


  • It may not filter out as many contaminants as more advanced systems.
  • Designed for less severe water quality issues, possibly requiring an upgrade if water issues increase.

Recommendation: Perfect for you if you have moderately clean water and seek an affordable and easy-to-maintain solution.

ERO 375 REVERSE OSMOSIS – EcoWater Systems

The ERO 375 Reverse Osmosis system from EcoWater Systems charms with its high efficiency and advanced technology. It offers thorough filtration and a sleek design that can fit into modern kitchens easily.


  • Initial setup can be a bit complex and might need professional assistance.
  • Replacement filters can be on the pricier side and require regular changing to maintain efficiency.

Recommendation: Best for technologically savvy users who value modern aesthetics and are willing to invest in higher maintenance costs for premium water filtration.


Each system has unique strengths catered to different needs. If your priority is high-end filtration and you’re willing to invest, the Ultrefiner II or ERO 375 REVERSE OSMOSIS units are outstanding choices. For those seeking more budget-friendly and simpler options, the Hydrefiner system is your go-to.

Ultimately, your choice should align with your water quality, maintenance willingness, and initial investment capability. Happy hydrating!

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *