Growing awareness of how environmental contamination affects health and wellness is driving more homeowners to explore water treatment options. A 2022 survey by the Environmental Working Group found that 50% of homeowners believe their tap water is unsafe to drink. As a result, many are turning to water filtration systems to remove contaminants such as chlorine, VOCs, sediment, lead, heavy metals, and agricultural chemicals.
Where do you begin when researching the best water filtration system for your home? Start by understanding your home’s water condition first, whether it comes from your city or a well. Some filtration manufacturers offer free water testing, or you can purchase a testing kit and do it yourself. Once you have this information, you can narrow down your water filter system based on your needs, whether it is purified drinking water, water softening, a whole-house filtration system, or a customized solution.
This guide walks you through the top water filtration companies that offer a wide range of treatment options, sizes and capacities, and price points.
Best Brands at a Glance
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- Overall value
- Widespread availability
- Advanced technology options
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- Easy tank replacement
- Low maintenance
- Product availability
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- Free water testing
- Convenient in-home consultation
- 30-day satisfaction guarantee
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- Many reverse osmosis product options
- Multiple application point-of-use filters
- Helpful website
Best Water Filtration System Brands 2025
Aquasure
- Average Cost to Install: $700 to $950
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 water filtration products are mid-ranged in price. Whole-house filtration systems cost from $700 to $950. UV treatment add-on products are $250 to $500. Reverse osmosis point-of-use solutions cost $190 to $340, and the cost range for water softeners is $500 to $680. Aquasure also offers several product bundling options under its Signature and Serene lines that start at $780 and go up to $2,500.
Best Model
Aquasure’s Fortitude Pro Series offers a good value, featuring multiple size options to fit household needs, two filtration stages, and flow rates up to 20 GPM. Fortitude Pro products include an NSF-certified carbon filter and remove a variety of chemical and organic pollutants.
Aquasana
- Average Cost to Install: $65 to $2,500
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’s cost range varies widely depending on the type, size, and complexity of the system. Shower and countertop products are the least expensive and cost between $65 and $185. Undersink systems cost from $125 to $200 for reverse osmosis technology. Whole house filtration starts from $800 and goes up to $2,500 or more with add-on features.
Best Model
For well-water filtration, we like the Rhino Well Water with UV system that removes common well water bacteria, viruses, and other contaminants up to NSF/ANSI Standard 55.
Culligan
- Average Cost to Install: Requires consultation appointment
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 products are available through its national network of franchise locations. Specific pricing requires an in-home or phone appointment with a Culligan representative.
Best Model
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.
Waterdrop
- Average Cost to Install: $30 to $1,700
What We Love
Waterdrop is known for its quality selection of point-of-use water filtration products. The company’s reverse osmosis systems particularly stand out because they serve a variety of needs and applications. Tankless, instant hot water, and UV sterilization are a few of the additional features Waterdrop offers. Many products are NSF certified, and all come with Waterdrop’s 30-day money-back guarantee.
Cost Information
Waterdrop reverse osmosis systems start at $300 and go up to $1,700. Countertop and other point-of-use filters (shower, beauty, car, etc.) are less expensive, ranging from $30 to $600. Costs for Waterdrop whole-house water filtration systems range from $160 to $440, depending on the size and number of stages.
Best Model
The company’s X12 reverse osmosis system offers an impressive 1200 flow rate and a 3:1 pure-to-drain rate. The X12 also includes remineralization, a digital faucet, and the ability to adjust water volume as desired.
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Kinetico Water Systems
- Average Cost to Install: Contact dealer for a custom quote
What We Love
Kinetico Water Systems has delivered water treatment solutions to homes and businesses for over 50 years. The company offers whole-house filtration, reverse osmosis systems, and water softeners. Kinetico features an impressive quantity of specific and customizable water treatments.
Cost Information
Kinetico product pricing information is limited online. The company’s network of authorized dealers can provide a custom quote specific to your household’s needs.
Best Model
Kinetico was one of the first companies to offer non-electric water softeners, and the company continues its product market leadership. The Kinetico Signature Series features dual tanks for on-demand water and non-electric operation for lower-cost maintenance.
Whirlpool
- Cost to Install: $600 to $1,000
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
The cost range for Whirlpool water softeners is $600 to $1,000. Size and capacity affect pricing the most, and the company’s Pro Series costs more on average than its other models. Whirlpool’s whole-house filtration system costs $600 on average.
Best Model
The Whirlpool WHES40 is ideal for households up to six people and features on-demand technology to improve system efficiency and cost savings. Customers highlight its easy installation, quality water, and compact, space-saving design.
SpringWell
- Cost to Install: $625 to $3,000
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 whole-house filtration systems start at $625 and go up to $3,000 with various add-ons. Well water systems range from $2,100 to $2,900, while water softeners cost between $1,500 and $2,500.
Best Model
While SpringWell’s filtration products are a little higher than average compared to its competitors, its budget-friendly whole-house carbon cartridge system starts at $625. It removes larger particles like sand and dirt as well as chlorine, chloramine, pesticides, PFAS, PFOA, and more.
iSpring
- Cost to Install: $100 to $900
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 products accommodate a variety of pricing needs. The company’s products generally fall on the budget side, with most systems costing under $500. Whole-house filtration systems range from $150 to $800, and reverse osmosis systems from $170 to $800. The company also manufactures water descalers and softeners that cost from $100 to $900.
Best Model
The iSpring RCC7AK reverse osmosis system is one of the company’s top-rated budget-friendly products. The NSF-certified system features six stages and includes an alkaline filter to replenish water with healthy minerals.
Pentair
- Cost to Install: $260 to $3,500
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
The cost range for Pentair whole-house filtration systems is $160 to $1,600 and higher for customized solutions. Its undersink drinking water systems cost $300 to $500 on average. The company’s line of water softeners range from $1,000 to $3,000.
Best Model
Pentair’s FreshPoint Five-Stage Reverse Osmosis system is a compact undersink solution for a home’s drinking or tap water. Water passes through multiple filtration stages to remove chlorine taste and odor, arsenic, VOCs, lead, and dissolved solids.
APEC Water
- Cost to Install: $120 to $1,500
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 Water whole-house filtration systems start at $120 for basic systems and go up to $1,500 or more for heavy-duty solutions. Its UV system costs $2,100. Water softeners and conditioning systems range from $600 to $1,500. The company’s reverse osmosis systems cost from $280 to $585.
Best Model
The APEC Essence reverse osmosis system offers high-quality filtration with high-flow membranes and filters, all for approximately $250 as of publication.
