Best Water Filter for Chloramine Removal (2026)

Chloramine is not chlorine. Municipal water systems switched to chloramine disinfection because it persists longer in distribution pipes, produces fewer regulated disinfection byproducts (DBPs), and stays active all the way to your tap. But that stability is exactly what makes chloramine so much harder to remove. Standard activated carbon - the backbone of most pitcher, faucet, and basic whole-house filters - only removes 30% to 50% of chloramine. If you live in a city that uses chloramine and you want it out of your drinking water, shower, and appliances, you need a filter engineered specifically for chloramine removal. This guide covers how chloramine works, which cities use it, what actually removes it, and the best systems available in 2026.

What Is Chloramine and Why Do Water Utilities Use It?

Chloramine is a chemical compound formed when ammonia is added to chlorine-treated water. The resulting monochloramine (NH2Cl) is a weaker disinfectant than free chlorine but remains stable in water distribution systems for significantly longer periods. This stability is the primary reason water utilities began the switch.

Since the 1970s, an increasing number of U.S. municipalities have adopted chloramine as a secondary disinfectant. The EPA estimates that over 30% of American water utilities - serving roughly one in five households - now use chloramine to maintain water quality from the treatment plant to the tap. Free chlorine degrades relatively quickly, especially in warm weather and in large distribution networks with aging infrastructure. Chloramine solves this problem by providing residual disinfection capability across miles of pipes and hours of travel time.

The regulatory driver behind the switch was the EPA's Stage 1 and Stage 2 Disinfectants and Disinfection Byproducts Rules (DBPR). When chlorine reacts with natural organic matter in water, it forms trihalomethanes (THMs) and haloacetic acids (HAAs) - both linked to cancer and reproductive effects in epidemiological studies. Chloramine produces significantly lower levels of these regulated byproducts, making compliance easier for utilities. The tradeoff is that chloramine creates its own byproducts - including N-nitrosodimethylamine (NDMA), a probable human carcinogen - though these are less regulated and monitored.

The EPA Maximum Contaminant Level (MCL) for chloramine is 4.0 mg/L (or ppm) as a running annual average. Most systems target 2.0-3.0 mg/L for distribution. The EPA also sets a maximum residual disinfectant level (MRDL) of 4.0 mg/L. Water systems must monitor and report chloramine levels in their annual Consumer Confidence Reports (CCRs).

Which Cities Use Chloramine?

Chloramine use is concentrated in larger metropolitan areas with extensive distribution networks, though the practice has spread to mid-size systems as well. Here are some of the major U.S. cities using chloramine as of 2026:

This list is not exhaustive. More than 200 individual water systems across the United States use some form of chloramine. The only way to know for certain is to check your utility's annual Consumer Confidence Report (CCR), which is required by law to list disinfectants used. Most utilities publish these reports on their websites.

Health, Safety, and Infrastructure Concerns

Lead Leaching

One of the most significant issues with chloramine is its potential to leach lead from old plumbing infrastructure. The chemistry is well-documented: chloramine can destabilize lead scale (the protective mineral layer that forms inside lead pipes) more aggressively than free chlorine under certain water chemistry conditions. This mechanism was investigated in the aftermath of the Flint, Michigan water crisis, where a switch in water treatment chemistry contributed to catastrophic lead release.

While chloramine itself does not contain lead, its interaction with aging lead service lines, lead solder (used before 1986), and brass fixtures can increase lead levels at the tap. This is particularly concerning for homes built before 1986 and for cities with extensive lead service line networks. If you suspect lead pipes in your home, a chloramine-specific whole-house filter combined with a point-of-use lead filter provides layered protection.

Fish and Aquarium Toxicity

Chloramine is acutely toxic to fish, amphibians, and aquatic invertebrates. Unlike chlorine, which can be removed by letting water sit for 24 hours (it degasses), chloramine does not dissipate with aeration or standing. Standard dechlorinators that only neutralize chlorine are insufficient. Aquarium hobbyists must use conditioners specifically labeled for chloramine removal - these contain both sodium thiosulfate (to neutralize chlorine) and agents to bind the released ammonia.

Dialysis Patients

Chloramine must be removed from water used for dialysis. Hemodialysis units use large volumes of water directly interfacing with blood. Even low levels of chloramine can cause hemolytic anemia in dialysis patients. All dialysis centers use specialized pre-treatment systems including carbon tanks specifically sized for chloramine removal, with rigorous monitoring protocols.

Respiratory and Skin Irritation

Chloramine vaporizes in hot shower water and can be inhaled. While the concentrations are generally below acute irritant thresholds for healthy individuals, people with asthma, chronic obstructive pulmonary disease (COPD), or chemical sensitivities may experience respiratory irritation. The volatility of chloramine is lower than chlorine, but prolonged exposure in enclosed shower spaces still results in meaningful inhalation exposure.

What Actually Removes Chloramine?

Not all filtration media handle chloramine effectively. Here is the breakdown of removal rates by technology:

Catalytic Carbon: The Gold Standard

Catalytic carbon is a specially processed form of activated carbon where the surface has been chemically activated to enhance its redox (reduction-oxidation) capability. Standard activated carbon removes chloramine primarily through slow adsorption, which means contact time must be very long - often impractical in residential flow rates. Catalytic carbon accelerates the decomposition reaction that breaks the chlorine-nitrogen bond in chloramine, converting it to harmless chloride, nitrogen gas, and water.

The key specification is empty bed contact time (EBCT). For catalytic carbon to achieve 90%+ chloramine removal, water must remain in contact with the media for at least 2-3 minutes at typical residential flow rates. This is why whole-house systems with large catalytic carbon beds outperform small countertop or pitcher filters - they simply have more media volume and longer contact time.

KDF-85

KDF-85 is a copper-zinc alloy that uses redox (oxidation-reduction) chemistry to neutralize chloramine. It is often used alongside catalytic carbon in whole-house systems. KDF-85 performs well at higher temperatures, making it a good complement to carbon in shower filters. However, KDF alone generally achieves 80-90% removal - slightly below catalytic carbon's performance - which is why the best systems use both media in series.

Reverse Osmosis

RO membranes reject the small chloramine molecule at 95-99% efficiency when paired with carbon pre-filters. The pre-filters protect the membrane from chlorine/chloramine degradation, while the membrane removes any residual chloramine that passes through. RO is the most thorough point-of-use option but does not protect shower water or appliances - it only treats the single faucet where installed.

Best Chloramine Water Filter Systems (2026)

1. Aquasana Rhino Whole-House System with Catalytic Carbon ($1,499)

The Aquasana Rhino is one of the few whole-house systems explicitly engineered with a dedicated catalytic carbon stage for chloramine removal. The EQ-1000 series uses a multi-stage design: a 5-micron pre-filter for sediment, a large catalytic carbon bed (600,000-gallon capacity), a sub-micron post-filter, and optional UV. The catalytic carbon media is rated for 10 years or 1,000,000 gallons under normal use. Independent research and NSF/ANSI certification to Standard 42 confirm chloramine reduction capability. Professional installation is recommended due to the 1-inch plumbing connections and size (approximately 46 inches tall). Replacement media costs approximately $650 every 10 years, making the long-term cost approximately $65 per year plus pre-filter replacements.

2. SpringWell CF1 Whole-House Filter ($1,199)

The SpringWell CF1 uses a 4-stage filtration process that includes catalytic carbon specifically for chloramine and chlorine removal. It is rated for 1,000,000 gallons and handles flow rates up to 9 GPM with minimal pressure drop. The system includes a 5-micron sediment pre-filter, two large catalytic carbon beds, and a final polishing filter. SpringWell offers a lifetime warranty on the tank and valves, and the system is designed for DIY installation with included bypass valves and fittings. Replacement filter packs run approximately $180 annually. For households with chloramine and moderate sediment, this represents one of the best value propositions in whole-house filtration.

3. Any Quality Reverse Osmosis System ($250-$600)

For drinking water specifically, any reputable under-sink RO system will remove 95-99% of chloramine. Look for systems with NSF/ANSI 42 and 58 certifications. The APEC Essence series, iSpring RCC7, and Home Master TMAFC-ERP are all solid choices in the $300-$500 range. RO systems treat only one faucet - typically the kitchen sink - but provide the highest purity water for drinking and cooking. If your primary concern is chloramine in drinking water and not shower water, an RO system is the most cost-effective solution.

4. Pelican PC600 Whole-House Carbon Filter ($1,300)

Pelican's PC600 uses catalytic carbon in a up-flow design with a 600,000-gallon rating. The system includes a pre-sediment filter, a large catalytic carbon tank, and a copper-zinc KDF-55 stage for additional contaminant reduction. It is WQA certified to NSF/ANSI Standard 42 for chloramine reduction. The up-flow design means no backwashing or electricity required, reducing operating complexity. Replacement carbon media is needed every 5 years at approximately $400.

Why Whole-House Filtration Matters for Chloramine

Most water filter discussions focus on drinking water. With chloramine, that narrow focus is a mistake. Here's why whole-house treatment is worth the investment:

Shower exposure: A 10-minute shower exposes you to chloramine through two pathways: dermal absorption through the skin and inhalation of vaporized chloramine in steam. The skin absorbs chloramine readily, and warm shower water volatilizes a portion into the air you breathe. For people with eczema, asthma, or chemical sensitivities, this exposure can trigger symptoms. Studies on shower filtration have documented measurable improvements in respiratory and skin conditions when chlorine and chloramine are removed.

Appliance protection: Chloramine is corrosive to rubber seals, gaskets, and some metals over time. Tankless water heaters, washing machine inlet valves, dishwasher components, and refrigerator water lines can all experience accelerated degradation from prolonged chloramine exposure. While the effect is slower than that of chlorine, whole-house filtration removes this stress entirely.

Garden and aquarium water: If you keep fish, maintain a garden pond, or use tap water for hydroponics, whole-house filtration ensures every tap in the home provides chloramine-free water. This eliminates the need for chemical dechlorinators at every use point.

Respiratory health: Inhalation of chloramine vapor during showering represents a non-trivial exposure route. The EPA has noted that inhalation and dermal absorption during showering can contribute as much or more to total disinfectant exposure than drinking the water. Removing chloramine at the point of entry addresses this exposure.

How to Test for Chloramine in Your Water

There are three ways to determine whether your water contains chloramine and at what concentration:

1. Check your Consumer Confidence Report (free): Every public water system in the United States must publish an annual CCR by July 1. This report lists all disinfectants used, including whether chlorine, chloramine, or chlorine dioxide is employed. Search "[your city] water CCR 2026" to find the most recent report. The CCR will list the type of disinfectant and average residual levels.

2. Chloramine test kit ($20-$30): Home test kits specifically designed for chloramine are available from brands like SenSafe, Industrial Test Systems, and LaMotte. These use colorimetric reagents - you fill a vial with tap water, add a reagent tablet or drops, and compare the resulting color to a chart. Detection range is typically 0-4 mg/L with 0.1 mg/L resolution. This is the most direct method for confirming chloramine levels at your tap.

3. Total chlorine test: Chloramine is measured as "combined chlorine" or "total chlorine" in water testing. If you have a standard pool or aquarium test kit that measures total chlorine, a positive reading indicates chloramine is present (free chlorine + combined chlorine = total chlorine). Free chlorine test strips will show lower readings than total chlorine strips when chloramine is present - the difference is the combined chlorine (chloramine) portion.

Pitcher and Faucet Filters: The Honest Truth

The majority of pitcher filters and standard faucet-mounted filters use basic activated carbon. As noted above, standard activated carbon achieves only 30-50% chloramine reduction under typical residential flow rates and contact times. This is not a defect - these products are designed primarily for chlorine taste and odor reduction, not chloramine removal.

If you are limited to a pitcher or faucet filter and need chloramine reduction, look for products that explicitly list chloramine on their NSF certification or packaging. Some options include:

• Brita Elite filters: NSF 42 and 53 certified; some reduction of chloramine but not optimized for it
• ZeroWater pitchers: Use ion exchange resin + carbon; the ion exchange stage helps with some chloramine reduction but media life is short
• Multipure Aquaversa: Solid carbon block with NSF certification for chloramine specifically

Generally speaking, if you live in a chloramine-treated area and want meaningful removal, a pitcher or basic faucet filter is insufficient. You need either a catalytic carbon whole-house or point-of-use system, or reverse osmosis for drinking water. The cost difference between a $25 pitcher and a $1,200 whole-house system is substantial, but so is the difference in protection.

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Every product on Filter Tested undergoes 4-6 months of research-based analysis in real-world conditions. We verify all manufacturer claims against independent lab results and NSF certification databases. Products are scored across 8 categories including filtration performance, flow rate, certifications, installation complexity, and total cost of ownership. Learn more about how we test.

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About Filter Tested: FilterTested.com independently researches and reviews water filtration systems. We analyze certifications, test data, manufacturer specifications, and customer reports to provide accurate, unbiased recommendations. This guide was last updated January 2026.

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