Customer photo: a used Helios cartridge stained brown, held under a clean one
Customer photo: a new white cartridge next to a dark used cartridge on a bathroom counter
Customer photo: two used cartridges stained tan

Real images from real reviews.

From verified reviews

See what your tap water leaves behind

Your water can look clear and still carry dirt and rust. The sediment filter catches them before the water reaches your face and your toothbrush.

“Whenever I change the filter, all I can think about it ‘gross I cannot believe I was washing my face in that.’”Virginia, verified buyer
  • The brown is what the filter caught: dirt and rust held in the cartridge, not left in your sink.
  • Swap every 30 days and each month starts with a clean cartridge.
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Why 30 days

Every 30 days, a fresh start

Helios recommends a fresh cartridge every 30 days. Here's how those 30 days go.

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Day 1

Fresh cartridge

A white sediment filter and a full Vitamin C layer.

Week 2

Doing the work

It's already catching dirt and rust.

“By the second week of the month you can see the filter at like 60%.”Denise C., verified buyer

Swap day
Day 30

Time for a fresh one

The day Helios recommends swapping in a new cartridge.

Day 31+

Overdue

Past the 30 days Helios recommends. On a subscription, your next cartridge is already in the box.

No tools needed

Swap a cartridge in 3 steps

Hand pulling the used cartridge out of a Helios Sink Filter on a faucet, with the bottom cap set on the sink
Step 1

Twist off the cap

Leave the filter on the faucet. Twist off the bottom cap and pull out the used cartridge.

A brown used cartridge held next to a clean new cartridge
Step 2

Drop in a fresh one

Put a new cartridge in and twist the cap back on.

Water running through the Helios Sink Filter with a fresh cartridge
Step 3

Turn on the water

That's it. Your next 30 days start now.

Photos: stills from a Helios community video.

Did you know?

What's in your tap water

And what a Helios cartridge does about it.

Illustration: white chlorine granules and tiny bubbles in blue-grey water

Chlorine

Cl₂

Utilities add chlorine to tap water to kill germs. It keeps water safe to drink, and it also reaches your face every time you wash.

Natural oils

Chlorine can strip skin of its natural oils, leaving it dry and sensitive.

Taste & smell

Chlorine can change how tap water tastes and smells, including the water you brush with.

Used in US tap water since1908

according to the CDC

What Helios doesNeutralized

by the Vitamin C layer, which reacts with chlorine.

Sources: CDC, U.S. EPA (chloramines), U.S. EPA (iron), Indiana Dept. of Environmental Management (sediment), Cleveland Clinic, USDA Forest Service.

Real people, real sinks

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Complete your routine

Pairs well with

Helios Sink Filter with its box

Helios Sink Filter

Add one to another sink. Each kit comes with 4 aerator keys and 6 adapters to fit a wide range of US sinks.

$79.00
Shop our sink filter
Helios Vitamin C Infusion Filtered Showerhead

Vitamin C Infusion Filtered Showerhead

Filtered water for your shower. Comes with a free infusion filter while Helios's current offer lasts.

$179.00
View showerhead
Helios infused shower filters in yellow, blue and pink

Shower filter refills

Own the showerhead? It uses its own refills: Core, Micro and infused filters (Radiance, Renewal, Recovery, Hydration).

From $32.00
Shop shower refills

Refill FAQ

How often should I replace my Helios sink filter cartridge?

Helios recommends replacing the cartridge every 4 weeks, or after 30 days of daily use, for the best water quality and filter efficiency.

How long does each pack last, and what does a filter cost?

For one sink, the 2-Pack lasts 60 days, the 4-Pack 120 days and the 12-Pack 360 days. Bought one-time, that's $14.50 a filter for the 2-Pack and 4-Pack and $13.67 for the 12-Pack. On a subscription, your first box is 20% off ($11.60 a filter), then $14.50 a filter.

I have Helios on more than one sink. What should I order?

Each sink uses one cartridge every 30 days. For two sinks, a 4-Pack lasts 60 days and a 12-Pack lasts 180 days.

Will these fit my filter?

These cartridges are for the Helios Sink Filter (white or black). The Helios showerhead uses its own shower filters.

How does the subscription work?

Choose 2 filters every 2 months or 4 filters every 4 months. Your first box is 20% off, and each delivery after that is billed at the regular pack price. You can skip a delivery, pause, change or cancel your plan anytime from the "Manage Subscription" link in your order email or from your account. No need to contact support. To avoid an upcoming charge, cancel at least 3 days before your next billing date.

What does the cartridge do?

Its Vitamin C neutralizes chlorine and chloramine. Its sediment filter catches dirt, rust and other particles, which you can see on a used cartridge.

Can I drink the filtered water?

Helios is made for washing your face and brushing your teeth. It isn't intended for drinking water.

Can I use it with hot water?

Warm water is fine. Helios's care guide says to keep the water under 100°F and the pressure under 40 psi, and not to run the faucet at full pressure.

Do you ship outside the US?

Not at the moment. Orders ship within the United States and are processed in 1–2 business days. Standard shipping is free on orders of $99 or more.

Still have a question?

Email support@heliosfilter.com. We get back to you within 24 hours on weekdays.

Stay stocked

Swap day is coming. Be ready for it.

Subscribe once and fresh cartridges arrive on schedule: 2 every 2 months, or 4 every 4 months. Or get the 12-Pack: 360 days of cartridges for one sink, with free standard shipping.

Helios replacement cartridge box with two cartridges