Arsenic Removal Filter Sets: Cartridge, Housing & Mounting Hardware

Description

This is a complete arsenic removal filter set: an arsenic-selective filter cartridge, a matching housing, and all mounting hardware, built specifically to target arsenic rather than to reduce a broad mix of contaminants a little at a time. It can be installed as a standalone filter on its own housing, added as an extra stage to a four- or five-stage reverse osmosis system, or placed in the water line before or after other filters you already have.

Two configurations cover most homes: the 10″ x 2.75″ set, which uses a clear canister with 3/8″ connections and is sized for drinking-water (point-of-use) applications such as a kitchen sink or an RO system; and the 20″ x 4.5″ set, a larger “Big Blue”-format housing built for higher water volume. Four additional sizes — 10″ x 4.5″, and 20″ x 2.75″ in both 3/4″ and 1″ connection options, are also available. Every configuration ships free

What's Included

• Arsenic-selective filter cartridge, sized to the configuration you choose
• Matching filter housing (clear canister on the 10″ x 2.75″ configuration)
• All mounting hardware needed to install the housing

If you already own a compatible housing and only need a new cartridge, our arsenic filter cartridges are sold separately, buying the cartridge alone is less expensive than buying another complete set

Available Sizes & Configurations

Not sure which size fits your plumbing or your household's water usage? Call 1-800-684-0979 and a water tech can confirm the right configuration before you order.

How This Filter Fits Into Your Water Setup

You can run this filter on its own, using the included housing as a standalone point-of-use filter. You can also add it as an extra stage to an existing four- or five-stage reverse osmosis system, most standard RO systems are not built to remove arsenic on their own, so an arsenic-selective cartridge is typically added rather than substituted for the RO membrane. It can also be placed in the water line before or after other filters you already have installed.

Is This the Right Arsenic Filter for You?

This set is built for arsenic specifically, not as a general-purpose contaminant reducer. It's a good fit if you've confirmed, or strongly suspect,  arsenic in your water and want a filter dedicated to that problem, either for drinking water at one location or as an addition to a larger system.

If you need to treat every tap in the house rather than a single point of use, a larger point-of-entry system may be a better fit than this housing-and-cartridge set, you can compare our whole-house arsenic treatment options, including the Arsenox and Arsenic Boost tanks. And if arsenic is only one of several problems in your water, a broader well water treatment system may make more sense as the primary setup, with this cartridge added for arsenic- specific coverage. If you're not sure which category you're in, that's exactly what a call to a water tech is for.

Understand Your Water Before You Buy

The EPA's Maximum Contaminant Level for arsenic in drinking water is 10 parts per billion (ppb). Because arsenic has no taste, odor, or color, the only way to know your actual level is to test your water for arsenic, which matters both for deciding whether you need arsenic treatment at all, and for helping a water tech recommend the right configuration and housing size for your situation. We offer both residential and professional arsenic test kits if you haven't already tested your water

Replacement Cartridges

Once the cartridge in this set reaches the end of its service life, you don't need to replace the whole housing. We sell matching replacement arsenic filter cartridges on their own in the same core sizes (10″ x 2.75″, 10″ x 4.5″, 20″ x 2.75″, and 20″ x 4.5″). If this is your first purchase and you don't yet own a housing, this complete set — not the cartridge- only listing — is the one yo

Specifications

FAQs

What's the difference between this set and the replacement cartridges?

This set includes the housing and mounting hardware along with the cartridge, everything you need for a first installation. Our arsenic filter cartridges page sells just the cartridge, for when you already own a compatible housing

What's the difference between the 10″ x 2.75″ and 20″ x 4.5″ sizes?

The 10″ x 2.75″ is the more compact, point-of-use size, often used for a single drinking-water location or as an addition to an RO system. The 20″ x 4.5″ is a larger “Big Blue”-format housing generally chosen for higher water volume. If you're unsure which matches your household, call 1-800-684-0979.

Can I add this to my existing reverse osmosis system?

Yes. Most standard reverse osmosis systems are not built to remove arsenic on their own, so this cartridge is typically added as an extra stage rather than replacing your existing RO membrane.

Do I need to test my water for arsenic before buying?

Testing isn't required to purchase, but it's the only way to know your actual arsenic level, and it helps a water tech confirm the right size and configuration for your situation. We offer home and professional arsenic test kits separately.

Does this come with a faucet?

No. This set includes the cartridge, housing, and mounting hardware. If you need a dedicated faucet as part of the installation, call 1-800-684-0979 to discuss options.

How do I know when the cartridge needs to be replaced?

Replacement timing depends on your water's arsenic level and your household's usage, so there isn't one fixed interval that applies to every home. A water tech can give you a more specific estimate based on your test results and usage.

Ordering & Support

Every configuration ships free. If you're unsure which size or connection matches your plumbing, or whether this set or a larger whole-house system is the right fit, call 1-800-684-0979 to speak with a water tech before you order.