clnwater shower filter replacement cartridge
Replacement cartridge
Filter media cross-section
Cartridge inside the shower head
★★★★★
I set the subscription and forget it. A fresh one shows up right when the old one's done.
Priya N. · Verified buyer
Keep your shower filtered

Halo Shower Filter Replacement Cartridge

KDF-55 + activated carbon · fits the clnwater Halo Filtering Shower Head
★★★★★ 4.8 · 410 reviews

The filter inside your shower head wears out after about three months of hot water. Drop in a fresh cartridge and the chlorine, smell, and dry-skin protection come right back. Same five-second swap, no tools.

How you get it
Save 15%
Subscribe & save
A fresh cartridge ships every 3 months. Skip or cancel anytime.
$20.40
$24
One-time
One cartridge, reorder whenever you like.
$24
Free shipping over $60 60-day money-back 5-second swap
Replacement CartridgeAdd to cart
Every 3 months

How you know it's time for a fresh one

A cartridge filters roughly three months of hot showers before the media is spent. On a subscription it just shows up on schedule, so you never have to track it. Not subscribed? These are the tells.

The pool smell is back

If you can smell chlorine in the shower again, the carbon is saturated and isn't holding it anymore.

Skin feels tight again

That dry, tight feeling after a shower creeping back is the clearest sign the filter is done.

It's been ~90 days

The simplest tell. Mark the date you installed it, or let the subscription do the counting for you.

Cross-section of the KDF and carbon filter media
What's inside

The same media that made the difference

Your replacement isn't a watered-down version. It's the exact two-stage media in the original head, packed fresh so the protection comes back to full strength.

  • KDF-55 copper-zinc. Pulls chlorine out through a redox reaction, the stage carbon-only filters miss in hot water.
  • Activated coconut carbon. Catches the chloramine, the smell, and the byproducts that dry out skin and hair.
  • Full pressure, always. Engineered for flow, so a fresh cartridge never turns your shower into a trickle.
Five seconds, no tools

Swapping it is easier than the first install

1

Unscrew the face

Twist off the front of the shower head by hand. The old cartridge lifts straight out.

2

Drop in the new one

Set the fresh cartridge in the same spot. It only seats one way, so you can't get it wrong.

3

Twist back on

Hand-tighten the face and run the water for ten seconds. Filtered shower, back to full strength.

Good to know

Quick answers before you reorder

Does this fit my clnwater shower head?

Yes. It's the one cartridge made for the clnwater Halo Filtering Shower Head, so it drops straight in. It won't fit other brands' heads.

How often do I really need to replace it?

About every three months for an average household. Heavier use or harder water can shorten that. The subscription is set to every 3 months so you stay covered without thinking about it.

What's the difference between subscribe and one-time?

Same cartridge. Subscribing saves you 15% ($20.40 vs $24) and ships a fresh one every 3 months automatically. You can skip a shipment or cancel in one click, anytime.

Can I cancel or change my subscription?

Whenever you want, no email or phone call needed. Manage it yourself from your account: skip, reschedule, or cancel in a couple of clicks.

What if I bought the whole system?

The shower head in the system uses this exact cartridge. Add a subscription here so the filtered shower keeps working long after the first cartridge is spent.