Amara Naqvi
Your Ultimate Guide to Choosing the Best Water Filtration System
Clean water is an essential part of a healthy lifestyle, yet many people aren’t aware of the harmful contaminants lurking in their tap water.
Whether you are concerned about chlorine, lead, PFAS, or other contaminants like pharmaceuticals, water filtration can improve the quality of your drinking water.
But with so many options out there, it can be overwhelming to choose the right system for your home.
Let’s break down some of the most popular water filtration brands:
- AquaTru
- iSpring
- Bluevua
- Waterdrop
- Berkey
- Frizzlife
We’ll compare their benefits and help you decide which one suits your needs. Additionally, we’ll explore key factors such as:
- Removal of contaminants
- Suitability for well water or municipal water
- Installation options (under-sink, countertop, pitcher)
- Price range
Why Do You Need a Water Filter?
Contaminants in tap water can range from chlorine and heavy metals to more harmful substances like PFAS (forever chemicals) and pharmaceutical residues. And if you live in an area with well water, additional filtration is often necessary to remove contaminants like iron, sulfur, and bacteria.
Whether you need well water filtration, a simple countertop solution, or a more robust under-sink system for a large family, the right system depends on:
- Your water source (municipal or well water)
- The contaminants you need to remove
- Your space and installation preferences
- Your budget and ongoing maintenance needs
Key Considerations Before Buying a Water Filtration System
Choosing a water filtration system can feel overwhelming, but taking a moment to think about your unique household needs and water conditions can make the process smoother. Here are some helpful things to consider:
1. Contaminant Analysis
It’s a good idea to know exactly what’s in your water. You can test it with a kit from companies like Health Metric, SenSafe, or use a third-party lab like Tap score or Safe Home®. Remeber to choose a laboratory that is accredited to perform specific drinking water testing by the Environmental Lab Accreditation Program (ELAP)
- Municipal Water: Often contains chlorine, fluoride, and sediment. Some areas may also have trace amounts of pharmaceuticals or PFAS.
- Well Water: May include bacteria, iron, sediment, sulfur, or heavy metals, meaning a more robust filtration system (sometimes with UV sterilization) may be necessary.
2. Filter Lifespan and Maintenance Costs
Think about how often the filters need to be replaced and how much it’ll cost. Some filters last a long time with minimal care.
- Annual replacement costs: Usually range from $50 to $300, depending on the system.
- Maintenance ease: Look for systems that offer easy filter swaps, like snap-on options or tool-free replacements to make upkeep less of a hassle.
3. Installation Requirements
Consider your space and your ability to install the system. If you’re in an apartment or have limited room, you may prefer a countertop model or pitcher filter, which are super simple to set up. Systems like iSpring or Waterdrop may need professional help for installation.
- Under-sink systems: These require more installation but are great if you need strong, ongoing filtration.
- Countertop systems: Easy to install and perfect for renters or anyone with limited space.
- Pitcher filters: Quick and easy but may not handle large quantities or multi-stage filtration.
4. Filtered Water Output
If you’ve got a large family, you’ll need a system that can keep up with demand, like AquaTru or iSpring. If you’re on your own or with a partner, a system like Bluevua or Sans might be just right, though they’re not as high-output as some of the larger options.
5. Environmental Considerations
If sustainability is important to you, options like Sans and Clearly Filtered are eco-friendly, using recyclable filters or minimal packaging. Waterdrop also offers energy-efficient RO systems, which cut down on environmental impact.
6. Price vs. Value
While some filtration systems (like AquaTru and Clearly Filtered) come with a premium price tag, the investment is worth it for many if water purity and health are your top priorities. On the other hand, brands like iSpring and Frizzlife offer more affordable, yet highly effective systems without compromising quality.
Top Water Filtration Systems: Comparing Brands
Let’s dive deeper into each of these systems, helping you find the perfect match for your home. Listed below are the types of filters, what they remove, and any unique features and benefits they offer.
Each brand we share is carefully selected to support your journey toward healthier living spaces. Through our affiliate links, you can easily access products, allowing us to earn a small commission at no extra cost to you.
(For the full selection of brands & products, we invite you to visit our shop page).
BEST FOR: Advanced filtration, including the removal of PFAS (per- and polyfluoroalkyl substances) – often called “forever chemicals.”
FILTRATION: Utilizes a multi-stage filtration process, including Reverse Osmosis (RO), to effectively remove a wide range of contaminants.
KEY CONTAMINANTS REMOVED: AquaTru’s Reverse Osmosis (RO) systems employ a patented four-stage filtration process designed to remove a wide array of contaminants from tap water. These systems are certified to NSF standards for the removal of 83 specific contaminants.
- Heavy Metals: Lead, arsenic, chromium-6, and other heavy metals.
- Chemicals and Disinfectants: Chlorine, fluoride, nitrates, and perchlorate.
- Volatile Organic Compounds (VOCs): Benzene, carbon tetrachloride, and various other VOCs.
- Pharmaceuticals and Hormones: Meprobamate, phenytoin, atenolol, carbamazepine, and estrone.
- Per- and Polyfluoroalkyl Substances (PFAS): Perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS).
- Microplastics: Particles ranging from 0.5 to less than 1 micron in size.
- Cysts and Pathogens: Giardia and cryptosporidium cysts.
IDEAL FOR: Individuals and families concerned about tap water contaminants. AquaTru’s RO system offers high-level purification, but it’s important to note that it also removes essential minerals like calcium and magnesium.
OPTIONS:
- Under-Sink Reverse Osmosis Water Purifier: An under-sink system providing 4-stage reverse osmosis purification, designed for installation beneath the sink for a streamlined look. Excellent for anyone who wants filtered water directly from the tap.
- Countertop Reverse Osmosis Water Purifiers
- AquaTru Classic: A countertop system utilizing a 4-stage reverse osmosis process to remove up to 99% of contaminants, including lead, fluoride, and chlorine.
- AquaTru Carafe: A compact countertop purifier with a glass carafe, offering the same 4-stage purification process in a space-saving design.
- AquaTru Classic: A countertop system utilizing a 4-stage reverse osmosis process to remove up to 99% of contaminants, including lead, fluoride, and chlorine.
PRICE RANGE: High-end; offers excellent purification, but costs more than traditional filters.
BEST FOR: Families who need an affordable RO system for well water or municipal water, particularly for under-sink installations. iSpring is great for larger homes needing regular water filtration due to its large capacity and customizable features like the optional remineralization filter.
FILTRATION: Offers various filtration technologies, including sediment filters, carbon filters, reverse osmosis (RO), and UV disinfection.
KEY CONTAMINATES REMOVED:
- Sediments: Sand, silt, dirt, rust.
- Chemical Contaminants: Chlorine, chloramine, VOCs, pesticides, herbicides.
- Heavy Metals: Lead, arsenic, mercury, cadmium, chromium.
- Microbiological Impurities: Bacteria, viruses, cysts (UV-enabled models).
- Inorganic Compounds: Fluoride, nitrates, nitrites.
- Industrial Pollutants: PFAS, pharmaceutical residues.
- Odors and Tastes: Chlorine, sulfur, organic compounds.
- Dissolved Solids: Reduces total dissolved solids (TDS).
OPTIONS
- Under-sink Systems: Like the isprings RCC7, a popular 5-stage RO system, offering high-quality filtration at a competitive price.
- Countertop Systems: Convenient and easy to install, such as the Ispring CKC1C with advanced carbon filtration.
- Whole-House Systems: For comprehensive filtration throughout the home, such as the Ispring WGB32B which removes sediment, chlorine, and VOCs.
- Specialty Filters: Including heavy metal filters and UV disinfection systems for specific needs.
PRICE RANGE: Affordable, especially for its performance. iSpring offers a good balance between performance and affordability.
BEST FOR
Households looking for a multi-stage system combining sterilization and filtration to eliminate both biological and chemical contaminants. Particularly useful for water supplies with concerns about bacteria, viruses, and heavy metals.
FILTRATION:
- UV Sterilization: Effectively neutralizes bacteria, viruses, and other pathogens.
- Activated Carbon: Used to filter out chlorine, VOCs, lead, pesticides, and other contaminants.
- Reverse Osmosis (for certain models): Works to reduce TDS, fluoride, and other dissolved solids.
KEY CONTAMINANTS REMOVED:
- Chlorine: Reduces chlorine for better taste and odor.
- Fluoride: Fluoride reduction when paired with additional filtration like RO.
- Lead: Effective removal of lead, improving water safety.
- Pesticides: Removes pesticide residues, ensuring safer drinking water.
- VOCs (Volatile Organic Compounds): Reduces solvents and industrial chemicals often found in water.
- TDS (Total Dissolved Solids): Some models (with RO technology) help reduce TDS, including harmful minerals and metals.
- Pharmaceuticals: Reduces trace pharmaceuticals, including antibiotics and hormones, often present in municipal water sources.
OPTIONS:
Countertop Reverse Osmosis Systems
- ROPOT: A countertop reverse osmosis water purifier featuring a 6-stage filtration process, designed to remove contaminants such as fluoride, PFOA/PFOS, lead, chlorine, and more.
- ROPOT(UV): An enhanced version of the ROPOT system, incorporating UV light for additional purification, effectively eliminating bacteria and viruses.
Portable Reverse Osmosis Systems
- ROPOT-Travel: A portable 6-stage reverse osmosis filtration system with UV light, designed for travelers seeking purified water on the go.
- ROPOT-Travel: A portable 6-stage reverse osmosis filtration system with UV light, designed for travelers seeking purified water on the go.
PRICE RANGE: Mid-range; offers effective filtration at a reasonable price, especially when considering UV sterilization and advanced filtration stages in one system.
BEST FOR
Ideal for smaller families, apartment dwellers, or anyone needing a compact, high-performance water filtration system for limited under-sink space.
FILTRATION:
- Reverse Osmosis (RO): Effectively removes a wide range of contaminants, providing high-quality purified water.
- Activated Carbon: Targets contaminants like chlorine, pesticides, and VOCs for better taste and safety.
- Sediment Filter: Captures larger particles, protecting the RO membrane and ensuring effective filtration.
KEY CONTAMINANTS REMOVED:
- Chlorine: Reduces chlorine content for better taste and odor, improving water quality.
- Fluoride: Removes fluoride, often of concern for those seeking fluoride-free water.
- Lead: Effectively reduces lead for enhanced safety.
- Pesticides: Removes agricultural chemicals and pesticide residues, which are common in tap water.
- VOCs (Volatile Organic Compounds): Filters out chemicals from industrial processes and household products.
- TDS (Total Dissolved Solids): Reduces harmful dissolved solids to improve the overall purity of the water.
- Pharmaceuticals: Removes trace amounts of pharmaceuticals, hormones, and other contaminants often found in water.
- PFAS: Some Waterdrop filters, particularly advanced models like the TSA 8-Layer Filter, may reduce certain types of PFAS. However, the effectiveness varies depending on the specific PFAS compounds and the filter’s design.
OPTIONS:
1. Tankless Under-Sink RO Systems: Compact systems designed to fit under sinks and deliver purified water efficiently without bulky storage tanks.
- Waterdrop G3P800: Advanced tankless RO system with an 800 GPD capacity, smart faucet, and real-time monitoring.
- Waterdrop D6: Slim, quiet RO system with a 600 GPD capacity and easy filter replacement.
- Waterdrop 10UA: Reduces PFAS, PFOA/PFOS, Lead, Chlorine, Bad Taste & Odor, Under Counter Water Filter Direct Connect to Kitchen Faucet.
2. Countertop Water Filters
Portable and simple to set up, ideal for renters or those who prefer no installation.
- Waterdrop N1: A tankless countertop RO system delivering 600 GPD, perfect for small spaces.
- Waterdrop RO Instant Hot Water: Features PFAS reduction, a 600 GPD flow rate, a 2:1 pure to drain ratio, and a smart LED faucet, providing both hot and cold water dispensing capabilities.
3. Refrigerator Water Filters
Designed to enhance water quality for ice and water dispensers in compatible refrigerators.
4. Pitcher Water Filters
Budget-friendly and portable pitchers offering basic filtration for drinking water.
5. Travel Water Filters
Compact and durable options tailored for on-the-go filtration, including outdoor or camping use.
6. Faucet Water Filters
Easy-to-install filters that attach directly to your faucet for on-demand filtered water.
PRICE RANGE:
- Mid-range: Waterdrop offers an affordable yet effective RO system, providing excellent filtration capabilities without the high price tag of larger systems.
5. Berkey Water: Gravity fed water filteration
BEST FOR:
These systems are ideal for individuals or families seeking purified drinking water from various sources, including tap, well, or natural freshwater. They are also suitable for camping or emergency preparedness due to their portability and non-reliance on electricity.
FILTRATION
Uses gravity-fed filtration with Black Berkey® purification elements, which are made from a proprietary blend of materials, including high-grade activated carbon. This system removes contaminants through a combination of mechanical filtration, adsorption, and ion exchange.
KEY CONTAMINANTS REMOVED
Berkey water filtration systems are designed to remove a wide range of contaminants, including viruses, pathogenic bacteria, pesticides, PFAS, nitrites, and heavy metals like lead and copper.
- PFAS (forever chemicals): Effective removal of these concerning pollutants.
- Viruses and Bacteria: The micro-pores in Black Berkey® filters are small enough to prevent micro-particles such as viruses and bacteria from passing through.
- Heavy Metals: The filters effectively reduce heavy metals like lead and copper.
- Pharmaceuticals: They have been tested and proven to remove more than 99.9% of pharmaceuticals such as progesterone and bisphenol-A.
- Other Contaminants: Berkey filters also remove pesticides, nitrites, and other impurities.
OPTIONS
Small Systems:
- Go Berkey Kit: Portable filtration system ideal for travel.
- Travel Berkey: 1.5-gallon capacity, suitable for 1-2 people.
Medium Systems: 2.25-3.25 gallon capacity, serves 2-6 people.
Large Systems: 4.5- 6.0 gallon capacity, ideal for 4-6+ people.
PRICE RANGE
Prices vary by model and retailer. For example, the Big Berkey system is available for approximately $317 at Walmart and $400 on Amazon.
Please note that Berkey systems are not NSF/ANSI certified, which may be a consideration for some users.
BEST FOR
Compact systems ideal for municipal or well water, offering user-friendly installation and maintenance. Frizzlife provides affordable, efficient filtration options, making it perfect for small households or individuals seeking reliable water purification without complexity.
FILTRATION
- Multi-stage filtration: Combines activated carbon and other specialized filters for effective contaminant removal.
- Includes a remineralization option to add essential minerals back into the filtered water.
KEY CONTAMINANTS REMOVED:
- Chlorine: Reduces chlorine for improved taste and odor.
- Lead: Effectively reduces lead levels, which can impact health.
- Mercury: Removes mercury, often found in industrial waste.
- Pesticides: Eliminates common pesticides from water sources.
- Nitrates: Tackles nitrates from agricultural runoff and waste contamination.
- Other harmful chemicals: Removes additional contaminants commonly present in water.
OPTIONS
- Under-sink filters: For efficient water filtration without taking up too much space. Easy-to-install for those in apartments or homes.
- Countertop options: A great alternative for homes without space for under-sink units.
PRICE RANGE
- Affordable for advanced filtration: Designed with quality and convenience in mind without a high cost, providing great value.
Final Thoughts: Which Filtration System Fits Your Lifestyle?
Finding the right water filter means balancing your budget with convenience and your specific water needs. Whether you’re dealing with PFAS contamination, want to improve the taste of your tap water, or are addressing issues from a private well, one of these brands is sure to meet your needs. Here’s a quick breakdown to help guide your decision:
- AquaTru: Top-tier reverse osmosis filtration, great for urban households or anyone needing high-level purification.
- iSpring: Perfect for larger families or homes with well water, offering durability and multi-stage filtration.
- Bluevua: Great for those who need added microbial protection through UV sterilization.
- Waterdrop: A compact, versatile option, ideal for small spaces and highly effective water purification.
Q/A: Which Water Filter System Should You Choose?
Best for PFAS Removal
AquaTru: With its patented four-stage Reverse Osmosis (RO) process, AquaTru excels at removing PFAS and other persistent contaminants effectively.
Best for Well Water
iSpring: Designed to handle the specific challenges of well water, including sediment, bacteria, and heavy metals. Models like the UV-enabled ones are ideal for microbiological concerns.
Best for Small Homes or Apartments
Waterdrop: Compact, tankless designs such as the Waterdrop G3P800 or N1 Countertop system are perfect for smaller spaces without sacrificing performance.
Best for Large Families
iSpring: Offers high-capacity whole-house systems like the WGB32B and under-sink RO systems with large water outputs, suitable for families requiring high-volume filtration.
Best for Easy Maintenance and Use
Berkey Water: Gravity-fed systems are simple to set up and maintain without plumbing or electricity, making them user-friendly for daily use or emergencies.
