Best Water Filters for Heavy Metals
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What Is The Best Water Filters for Heavy Metals [In 2025]

Choosing the right water filter for your home can be a daunting task, especially when it comes to removing heavy metals from your water supply. Heavy metals like lead, mercury, and arsenic can pose serious health risks, so it’s crucial to find a reliable water filtration system that can effectively remove these contaminants. In this comprehensive review, we’ll take a closer look at three top-performing whole house water filters that are designed to tackle heavy metal removal.

5 Best Water Filters for Heavy Metals Review

Express Water – Kinetic Degradation Fluxion Replacement Filter

Specs:

  • Filters up to 100,000 gallons or 6-12 months
  • Captures heavy metals, iron, lead, nickel, cadmium, sulfur, hydrogen sulfide, chromium, mercury, chlorine, chloramine, and more
  • Catalytic carbon and high purity copper and zinc granules for maximum chemical absorption
  • Thermal bonded cap and industrial sealed silicon ring for durability
  • Delivers up to 0.25 gallons per second
  • Works with 45-80 psi and water temperatures between 40-100°F

Pros:

  • Highly effective at removing a wide range of heavy metals and other impurities
  • High-capacity design for long-lasting filtration
  • Durable construction with thermal bonded cap and industrial sealed silicon ring
  • High flow rate of up to 0.25 gallons per second
  • Easy to install and replace

Cons:

  • More expensive than some other whole house filter options
  • May require professional installation for some users

HQUA WF3-01 3-Stage Whole House Water Filtration System

Specs:

  • Filters up to 100,000 gallons or 6-12 months
  • Removes sediment, chlorine, heavy metals (lead, mercury, copper, nickel, chromium), chloramine, and VOCs
  • 3-stage filtration with PP, GAC, and KDF filters
  • Delivers a minimum of 3 GPM and a maximum of 15 GPM
  • Inlet/outlet threads are 1″ FNPT, with optional 1″ MNPT and 3/4″ MNPT fittings included
  • Operating pressure of 25-116 PSI and temperature range of 40-125°F

Pros:

  • Effectively removes a wide range of contaminants, including heavy metals
  • High flow rate up to 15 GPM to maintain adequate water pressure
  • Durable brass threaded connections to prevent leaks
  • Includes pressure gauges, drain valves, and other useful features
  • Comes with extra gaskets and fittings for easy installation

Cons:

  • May require professional installation for some users
  • Does not soften water or remove limescale

iSpring Heavy Metals Whole House Water Filter System

Specs:

  • Filters up to 30,000 gallons (6 months) for the carbon block filter
  • Removes sediment, chlorine, chloramine, PFAS, lead, mercury, and other heavy metals
  • 3-stage filtration with PP sediment, compound, and carbon block filters
  • Peak flow rate of 12 GPM
  • Operating pressure of 25-80 PSI and temperature range of 40-100°F
  • 3/4″ NPT inlet/outlet connections

Pros:

  • Comprehensive 3-stage filtration system for heavy metal removal
  • High-quality components and construction for long-lasting performance
  • Relatively easy DIY installation for most users
  • Excellent customer service and support
  • Includes pressure release buttons and other convenient features

Cons:

  • May require a water softener for best results in hard water conditions
  • Slightly lower flow rate compared to some other whole house filters

Express Water Whole House Heavy Metal Water Filter Set

Specs:

  • 3-stage filtration with sediment, KDF, and carbon block filters
  • Filters up to 100,000 gallons or 6-12 months
  • Removes heavy metals, chlorine, iron, rust, lead, mercury, and more
  • High-capacity design with up to 0.25 gallons per second flow rate
  • Works with 45-80 psi and water temperatures between 40-100°F
  • Fits any Express Water Whole House System or 20″ filter housing

Pros:

  • Comprehensive 3-stage filtration for whole-home water purification
  • Highly effective at removing a wide range of contaminants, including heavy metals
  • Long-lasting filters with a 100,000-gallon capacity
  • High flow rate to maintain water pressure throughout the home
  • Easy to install and replace filters

Cons:

  • More expensive than some individual filter options
  • May require professional installation for some users

FAQ

1. How often should I replace the filters in a whole house water filtration system?

Filter replacement frequency typically ranges from 6 to 12 months, or after treating up to 100,000 gallons of water, depending on your water quality and usage. It’s important to follow the manufacturer’s recommendations for your specific system.

2. Can whole house water filters be installed outdoors?

Most whole house filters are designed for indoor installation in a well-ventilated area, protected from direct sunlight, heat, and weather. Outdoor installation is possible, but may require additional measures for insulation, weatherproofing, and freeze protection.

3. Do whole house water filters affect water pressure?

High-quality whole house filters, like the ones reviewed here, are designed to maintain water pressure throughout the home. They often have flow rates of 10-15 GPM or more, ensuring minimal pressure loss compared to unfiltered water.

4. Do I need a water softener in addition to a whole house filter?

It depends on the specific water quality issues in your home. While whole house filters can remove a variety of contaminants, including some hardness-causing minerals, a dedicated water softener may be necessary if you have very hard water (high TDS/Total Dissolved Solids).

5. How do I know if my whole house filter needs to be replaced?

Most systems come with pressure gauges or other indicators to help you monitor the filter’s performance. When you notice a significant drop in water pressure or an increase in contaminant levels, it’s typically time to replace the filters.

Conclusion

Investing in a high-quality whole house water filtration system is one of the best ways to ensure your family has access to clean, safe, and healthy water throughout your home. The four systems reviewed here are all excellent choices for effectively removing heavy metals and a wide range of other contaminants, while providing reliable, long-lasting performance. By considering factors like flow rate, filtration capacity, and the specific contaminants you need to target, you can find the perfect whole house filter to meet your household’s needs.

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