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10 Best Water Filtration System Brands 2025

Which water filtration system brands should you buy?
Here are Modernize's top picks:
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Clean, great-tasting water is essential for your family’s health, comfort, and everyday routines — from cooking and drinking to bathing and laundry. If your home’s water has a chlorine smell, leaves scale on fixtures, or comes from a sediment-heavy well, the right water filtration brand can make a noticeable difference in taste, clarity, and appliance performance.

The best water filtration brands of 2025 combine advanced filtration media, certified performance, and dependable warranties. Whether you need a whole-home system, a compact under-sink reverse osmosis filter, or a simple upgrade at the tap, most homeowners spend $1,000 to $5,000 on a professionally installed water filtration system, depending on home size, water quality issues, and system type.

  • Best for Budgets: Aquasure
  • Premium Performance: SpringWell Water Filtration Systems
  • Nationwide Availability: Culligan
  • Quiet Operation: Whirlpool
  • Innovative Technology: Pentair
  • Strong Warranties: Leaf Home Water Solutions

Best Brands at a Glance

Best Water Filtration System Brands 2025

Modernize’s expert team evaluated water filtration brands through comparisons of product selection, performance, and overall value. Review criteria included water filter types and specific treatment options, product availability and pricing, third-party certifications, and customer reviews.
  1. Culligan
  2. Leaf Home Water Solutions
  3. Aquasana
  4. SpringWell
  5. Pentair
  6. GE Water Filtration
  7. iSpring
  8. APEC Water
  9. Aquasure
  10. Whirlpool
1

Culligan

5/5
  • Average Cost: $1,500 to $4,500
Best For: Industry experience and nationwide service

What We Love

Culligan is one of the most recognized names in water delivery, and it has expanded its product offerings to include whole-house filtration, reverse osmosis systems, and water softeners. The company operates a franchise model with locations in 47 states that provide both Culligan products and expert installation. The company’s whole-house filtration systems offer an impressive amount of customization to address specific household water needs.

Cost Information

Culligan water treatment costs vary by system type, dealer pricing, and the level of water issues in the home. Premium softening and smart-monitoring models generally fall at the upper end of the range.

  • Water Softener Systems: $1,500 to $3,500
  • Reverse Osmosis Systems: $2,000 to $4,500
  • Annual Service Plans: $100 to $250

Installation costs vary by dealer and project complexity. While Culligan’s premium systems cost more than retail alternatives, the professional setup and long-term service network deliver stronger performance and reliability for households with persistent water-quality problems.

Best Product

Culligan’s High-Efficiency Whole House Water Filter is a good choice for either municipal or well water. The system allows for customizable filtration add-ons to address specific water treatment needs and includes indoor and outdoor models for space-saving installation.

Free water testing
Convenient in-home consultation
30-day satisfaction guarantee
Pricing only available by appointment
Requires Culligan installation
Costs more than other brands
2

Leaf Home Water Solutions

5/5
  • Average Cost: $3,000 to $5,400
Best For: Full-service whole-home filtration

What We Love

Leaf Home Water Solutions stands out for its dedication to enhancing water quality through tailored treatment systems. Their comprehensive range includes water softeners, salt-free conditioners, advanced filtration, reverse osmosis, ultraviolet filtration, and well water solutions. The company offers free in-home water tests, ensuring personalized recommendations based on individual water quality needs. Installation is handled by trained professionals, aiming to educate homeowners for optimal system use.

Cost Information

Leaf Home Water Solutions pricing varies based on the home’s water quality, system size, and whether filtration, softening, or a combination is required. Custom whole-home packages typically reach the higher end of the range due to professional testing and installation.

  • Whole-Home Filtration Systems: $2,000 to $4,000
  • Softener Add-On Packages: $3,000 to $5,000
  • Annual Maintenance Plans: $150 to $300

Installation is included in most packages. Leaf Home’s customized designs cost more than DIY systems but offer long-term value through tailored treatment and ongoing service support.

Best Product

The Leaf Signature Whole-Home Filtration System provides multi-stage treatment customized to your water test results, ensuring targeted removal of chlorine, sediment, and heavy metals. This system is ideal for homeowners who want a fully managed, professional-grade solution without DIY upkeep. Its comprehensive design and long-term warranty support make it especially attractive for families seeking reliable, set-and-forget water quality.

Comprehensive water treatment solutions
Professional installation services​
Positive customer feedback on water quality improvement
Limited pricing transparency​
Relatively short time in the industry
Some customer complaints regarding service issue
3

Aquasana

4.5/5
  • Average Cost: $1,000 to $3,000
Best For: Affordable, high-performance whole-home systems

What We Love

Aquasana offers a comprehensive range of filtration products designed to treat city or well water. The company could potentially become a one-source solution for your home’s needs, offering whole house, undersink, countertop, and shower filtration systems. Most whole house systems feature easy tank replacement for convenient ongoing maintenance.

Cost Information

Aquasana system pricing varies with system capacity, filter lifespan, and installation type. Whole-house carbon systems offer strong performance at a lower cost than many premium alternatives.

  • Whole-Home Filtration Systems: $1,000 to $2,000
  • Under-Sink RO Systems: $800 to $1,500
  • Annual Filter Replacements: $100 to $250

Professional installation may add to total cost. Aquasana’s systems offer excellent long-term value, especially for homeowners focused on affordability without compromising filtration performance.

Best Product

The Rhino® Whole House Filter System delivers long-life carbon filtration that reduces chlorine, heavy metals, and sediment while preserving beneficial minerals. It’s ideal for families who want clean-tasting water throughout the home without the maintenance of salt-based softeners. The high-capacity design and low annual operating costs make it a top choice for households on municipal water.

Easy tank replacement
Low maintenance
Product availability
May affect water pressure
Fewer options
Replacement filters can add up in price
4

SpringWell

4.5/5
  • Average Cost: $1,500 to $3,500
Best For: Salt-free filtration and eco-friendly conditioning

What We Love

SpringWell supplies a wide range of water filtration and softening products, including whole house and point-of-use systems. The company offers pre-packaged combination systems and the ability to customize based on your household’s needs.

Cost Information

SpringWell pricing depends on system size, water source, and whether you choose a filter-only system or a filter-plus-conditioner combination. Salt-free systems generally carry a higher initial cost but lower long-term maintenance.

  • Whole-Home Filtration Systems: $1,500 to $3,000
  • Filter + Conditioners: $2,000 to $3,500
  • Replacement Media: $100 to $250

Professional installation is recommended for best performance. SpringWell’s systems cost more upfront than entry-level filters but provide long-lasting, eco-friendly conditioning ideal for scale reduction and municipal water treatment.

Best Product

The SpringWell CF1 Whole House Water Filter System features high-capacity catalytic carbon media designed to reduce chlorine, taste, odor, and organic compounds without adding salt. It’s ideal for homeowners who want low-maintenance, environmentally friendly filtration for everyday use. With a lifetime tank warranty and strong performance for city water, it delivers long-term value with minimal upkeep.

Six-month guarantee
Limited lifetime warranty
Customized options
More complex installation
Add-ons can be pricey
Limited availability
5

Pentair

4.5/5
  • Average Cost: $1,500 to $4,000
Best For: Smart filtration and water-usage monitoring

What We Love

Pentair is a long-trusted name in commercial industries, including restaurant and hospitality. The company is known for its high-quality drinking water filtration systems, including its reverse osmosis products. Pentair also offers a line of whole-house filtration and water softener products.

Cost Information

Pentair system costs vary by technology level, tank size, and whether smart monitoring is included. Models with app-enabled controls and leak detection generally cost more.

  • Whole-Home Filtration or Softening Systems: $1,500 to $3,500
  • Smart Connected Systems: $2,500 to $4,000
  • Annual Maintenance: $200 to $350

Professional installation ensures proper calibration and integration with Pentair’s smart features. While premium models cost more, their monitoring capabilities offer added convenience, efficiency, and peace of mind.

Best Product

The Pentair Pelican PC600-P Whole House Water Filter System is a dedicated whole-home carbon-media filtration solution designed for homes with 1-3 bathrooms. It’s ideal for homeowners who want to remove chlorine, sediment, and improve water taste and smell across every faucet, without a built-in softener. With its large-capacity tank, pre-filter, and long-life media rated for up to 650,000 gallons (or ~5 years before major media change), this model delivers low-maintenance, premium performance for standard-sized households.

NSF-certified products
Company-certified installers
Easy installation for select systems
Can cost more than other brands
Many add-on features are discontinued
Less warranty coverage than other brands

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6

GE Water Filtration

4.5/5
  • Average Cost: $200 to $2,500
Best For: Trusted household brand and easy-to-maintain systems

What We Love

GE makes filtration accessible, affordable, and familiar for homeowners who want trusted quality from a major manufacturer. The brand offers refrigerator filters, faucet systems, under-sink units, and whole-home sediment/chlorine filters that integrate easily into standard plumbing. It’s one of the best retail-friendly brands for simple, dependable filtration.

Cost Information

GE filtration costs vary depending on system type, capacity, and whether the installation requires plumbing modifications. Under-sink systems offer the lowest cost of entry, while multi-stage whole-home filters fall at the higher end.

  • Under-Sink or Single-Stage Systems: $200 to $500
  • Whole-Home Filtration Systems: $300 to $2,500
  • Replacement Filters: $20 to $80

Installation fees depend on plumbing complexity. GE’s systems deliver dependable performance at accessible price points, making them especially appealing for households that want brand reliability without the cost of a fully customized setup.

Best Product

The GE Smart Whole-Home Filtration System combines strong chlorine and sediment reduction with app-enabled monitoring for filter life and leak alerts. It’s ideal for busy households seeking a simple, automated way to manage home water quality. With widely available replacement filters and easy maintenance, it offers dependable performance and convenience at a reasonable price.

Widely available replacement filters
Budget-friendly under-sink and whole-home models
Strong brand reliability and support
Limited advanced whole-home custom options
Not designed for severe well-water contaminants
Filters need more frequent replacement
7

iSpring

4/5
  • Average Cost: $300 to $1,800
Best For: DIY-friendly reverse osmosis systems

What We Love

iSpring products are widely available from home improvement retailers and independent installers. The company is known for its quality filtration systems. Its reverse osmosis systems get especially high marks, and customers consistently note significant improvements in drinking water taste and odor. The company’s responsiveness to inquiries and overall customer service is also praised among customers.

Cost Information

iSpring pricing varies by the number of filtration stages, membrane capacity, and whether the system is designed for whole-home or drinking-water use. RO systems remain the brand’s most popular offering.

  • Under-Sink RO Systems: $300 to $700
  • Whole-Home Filter Systems: $800 to $1,800
  • Annual Filter Replacements: $40 to $120

Installation costs are generally moderate due to user-friendly components. iSpring’s pricing makes it a practical choice for homeowners seeking high-purity water without a premium cost.

Best Product

The iSpring RCC7AK RO System features six-stage filtration, including mineral reintroduction for balanced taste, making it excellent for drinking and cooking. This system is ideal for households dealing with lead, fluoride, or other dissolved contaminants. Its combination of affordability, thorough purification, and DIY-friendly installation makes it a standout for under-sink filtration.

Widespread availability
Variety of price points
NSF-Certified products
Warranty
Company website
No well water systems
8

APEC Water

4/5
  • Average Cost: $350 to $1,500
Best For: High-purity reverse osmosis filtration

What We Love

APEC Water offers multi-stage and single-stage whole-house filtration, water softeners, and point-of-use systems. The company’s various reverse osmosis systems are consistently rated highly among its customers, who highlight their home’s improved water quality, taste, and odor. APEC’s reverse osmosis systems are more efficient than some models featuring a 1:1 drain ratio.

Cost Information

APEC costs depend on RO membrane capacity, number of stages, and whether the unit is designed for standard or high-demand households.

  • Standard RO Systems: $350 to $1,000
  • High-Capacity RO Systems: $1,000 to $1,500
  • Annual Filter Kits: $60 to $150

Installation costs vary based on plumbing setup. APEC systems offer exceptional filtration quality and long membrane life, delivering premium drinking water performance at competitive prices.

Best Product

The APEC Ultimate RO-90 provides high-output drinking water with a powerful membrane capable of reducing fluoride, lead, chromium, and chlorine by up to 99%. It’s ideal for large families or households that consume significant filtered water daily. With its durable design and superior contaminant reduction, it offers a noticeably cleaner taste and long-term value.

Efficient RO systems
Ability to customize
Easy to install point-of-use systems
May require pricey add-ons
Warranty
Complicated installation
9

Aquasure

4/5
  • Average Cost: $800 to $2,000
Best For: Budget-friendly whole-home filtration

What We Love

With over 25 years in the water purification industry, Aquasure has become a trusted water filtration brand. The company offers a variety of moderately priced filtration solutions for the home, including whole-house filtration for city and well water, reverse osmosis systems, UV-treatment, and water softeners. Aquasure products are available from professional installers and retailers.

Cost Information

Aquasure pricing varies by flow rate, system type, and whether you choose whole-home filtration, conditioning, or RO. The brand is one of the most cost-effective options in the category.

  • Whole-Home Systems: $800 to $1,500
  • Reverse Osmosis Systems: $1,000 to $2,000
  • Filter Replacements: $75 to $150

Installation may add additional cost. Aquasure’s affordability makes it appealing for homeowners looking for solid performance without the price tag of higher-end systems.

Best Product

The Aquasure Fortitude Pro Series combines multi-stage sediment, carbon, and specialty media filtration in a durable, easy-to-maintain system. It’s ideal for homes facing common city-water challenges like chlorine taste or fine sediment. With strong performance at a low price, it suits budget-conscious families who still want reliable whole-home filtration.

Overall value
Widespread availability
Advanced technology options
May require professional installation
Customer service complaints
No commercial options
10

Whirlpool

4/5
  • Average Cost: $300 to $2,000
Best For: Affordable, retail-available softeners and filters

What We Love

Whirlpool is a household name for appliances, and the company also manufactures a line of water filtration systems, including water softeners, whole-house filtration, and undersink filters. Whirlpool water softener products consistently earn good reviews among customers for overall operational quality, improved water quality, and easy installation.

Cost Information

Whirlpool filtration system costs vary based on the model type, filtration stages, and flow capacity. Point-of-entry systems generally fall at the upper end of the range, while under-sink and single-stage filters offer a lower-cost entry point.

  • Whole-Home Filtration Systems: $300 to $800
  • Under-Sink Filtration Systems: $150 to $400
  • Replacement Filters: $20 to $60

Installation costs depend on existing plumbing and system type. Whirlpool’s pricing makes it a practical choice for households seeking basic softening or filtration with minimal maintenance demands.

Best Product

The Whirlpool Central Water Filtration System (WHELJ1) provides automatic self-cleaning filtration that reduces chlorine, sediment, and unpleasant taste and odor without requiring cartridge changes. It’s ideal for homeowners who want a low-maintenance, whole-home filtration solution that improves water quality across every tap. With continuous filtration and minimal upkeep, it’s especially beneficial for busy families who want consistent, reliable performance.

Trusted brand
Customer service
NSF-certified products
Higher costs than other brands
Only one whole-house filtration option
Limited filtration in some models

Best Water Treatment Companies

Looking for the best company to install your water filtration system? Explore our list of the 10 Best Water Treatment Companies to find the perfect solution for your home.

Modernize Review Hub

Ready to improve your home’s water quality? Visit the Modernize Review Hub to explore top-rated water treatment brands and installers, read best-of articles for more water treatment systems like water softeners and reverse osmosis units, and read brand and product reviews to help you choose the right solution for your home.

FAQs: Water Filtration Systems and Brands

Which water filtration brand is the most reliable?

Reliability depends on system type, build quality, and long-term service availability. Brands with robust dealer networks — such as Culligan and Leaf Home — tend to offer the most consistent results because they pair high-performing equipment with professional installation and maintenance. For homeowners preferring retail or DIY systems, established manufacturers like GE, Whirlpool, and Aquasana offer dependable filtration backed by widely available replacement filters and straightforward upkeep. Overall, a reliable brand is one that provides certified performance, durable components, and ongoing access to replacement parts or service.


Which brand offers the best whole-home filtration system?

The best whole-home system ultimately depends on your water source and treatment goals. Municipal water users often see the strongest results from carbon-based systems like those offered by Aquasana, SpringWell, or GE. Homes with well water typically benefit from higher-capacity systems that address iron, sulfur, or sediment, often provided by brands specializing in multi-stage tanks. If you prefer professional testing and installation, full-service brands with in-home assessments can deliver a more customized and comprehensive solution.


Which water filtration brand is best for well water?

Well water usually contains higher levels of sediment, iron, manganese, and organic contaminants, making multi-stage or specialty systems essential. Brands that offer targeted iron and sulfur reduction media, sediment pre-filtration, and optional UV treatment tend to perform best. When choosing a brand, look for systems designed specifically for well water conditions — especially those with larger tank capacities, replaceable media, and the ability to handle high flow rates without pressure loss.


Which water filtration brand is most affordable?

Budget-friendly filtration is typically found among retail brands or those offering modular, DIY-friendly systems. These brands often provide whole-home entry models, under-sink filters, and single-stage sediment systems at significantly lower prices than dealer-installed solutions. When evaluating affordability, consider not only the upfront price but also the cost of replacement cartridges, installation, and maintenance. Low-cost filters with short lifespans may end up costing more over time, while mid-priced systems with long-life media can be more economical long-term.


Which water filtration brand has the strongest warranties?

Warranty quality varies considerably between brands. Full-service companies generally offer longer, more comprehensive warranties because installation and maintenance are tightly controlled through certified technicians. Some manufacturers offer limited lifetime warranties on tanks or housings, while others provide multi-year coverage on valves, electronics, or smart components. When comparing warranties, review what is covered, how long each component is protected, and whether warranty service is performed locally or through third-party technicians.


Do I need professional installation for a water filtration system?

Professional installation is recommended for most whole-home systems — especially if the system includes multiple tanks, a bypass valve, a UV unit, or specialty media. Proper sizing and plumbing ensure consistent flow rates, reduced pressure loss, and accurate system performance. However, many under-sink and countertop systems are intentionally designed for DIY installation, making them ideal for renters, condo owners, or homeowners seeking a lower-cost solution. Always check product specifications before deciding which installation method is appropriate.


How long do water filtration systems typically last?

System lifespan depends on the type of filtration, water quality, and usage. Whole-home tank systems often last 10–15 years or more, especially those with replaceable media. Reverse osmosis systems can last a decade or longer, though membranes and prefilters require regular replacement. Cartridge-based filters vary widely and may need replacing every few months to a year. Consistent maintenance — especially timely filter or media changes — has a major impact on longevity and performance.


How do I know which filtration system is right for my home?

The best system depends on your water source (municipal vs. well), existing contaminants, flow rate needs, and budget. Start by identifying your water concerns: taste and odor issues, hard water scale, sediment, discoloration, or concerns about lead or PFAS. A basic water test — either professional or home-based — provides the information needed to match a filtration system to your specific situation. From there, you can decide whether you need whole-home filtration, a softener, reverse osmosis, or a combination.


What maintenance do water filtration systems require?

Maintenance typically includes replacing cartridges, refreshing softener salt (if applicable), monitoring flow rate changes, and periodically sanitizing housings or tanks. Whole-home systems with long-life media require the least attention, often needing only occasional cleaning or media replacement every few years. RO systems require the most structured maintenance because multiple stages need replacement at different intervals. Proper maintenance keeps water quality high and extends the life of the system.


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