Replacement cartridge · Fits every Duryn One
Duryn One Water Filter Pitcher - Clean
The everyday cartridge. A GravityPlus™ carbon block takes out PFAS, lead, chlorine and microplastics and leaves the minerals in. One cartridge, three months.
- Reduces PFAS, lead, chlorine, microplastics and 200+ contaminants
- Keeps calcium and magnesium in the water
- 200 litres or 3 months, whichever comes first
- Clicks in. No screwing, no leaks
30-day money-back guarantee
- Fits every Duryn One, including the first drop
- Clicks in. No screwing, no leaks
- Tested by IAPMO R&T to NSF/ANSI protocols
- Refill Plan: skip or cancel anytime
In the box: One sealed cartridge in a recyclable tube. No plastic wrap.
What's inside
Best for: Most municipal tap water. You want it clean and neutral, and you want to keep the minerals.
- 1
Stainless pre-screen
Catches sediment and rust before they reach the block.
- 2
GravityPlus™ carbon block
Activated carbon compressed into a dense block and engineered for gravity flow: enough contact time to hold PFAS, lead, chlorine, VOCs and microplastics without slowing the pour.
What it does to your water
Every claim here has a lab report behind it. The full list, with percentages, is on the lab results page.
Reduces
Keeps
Clean and neutral. Water that tastes like water.
Which cartridge is right for you?
Same fit, same carbon block. The difference is what happens after the block.
| Clean | Alkaline | Softener | |
|---|---|---|---|
| Best for | Most municipal tap water | Flat or heavy-tasting water | Hard water and limescale |
| PFAS, lead, chlorine, microplastics | Reduced | Reduced | Reduced |
| Extra stage | None | Magnesium mineral stage | Ion-exchange stage |
| Limescale | Unchanged | Softer taste | Reduced |
| pH | Unchanged | Raised | May drop slightly |
| Minerals | Kept | Magnesium added | Calcium and magnesium reduced |
| Taste | Clean, neutral | Smooth, slightly sweet | Soft; better tea and coffee |
| Cartridge life | 3 months | 3 months | 3 months, less in very hard water |
Replacing takes two seconds
No screwing, no tools, no wet hands. The QR code on the tube opens this guide.
- 1
Lift and pull
Take off the walnut lid and lift the old cartridge straight out of the steel funnel.
- 2
Rinse
Hold the new cartridge under the cold tap for 30 seconds to wet the carbon block.
- 3
Click
Drop it into the funnel and press until you feel it seat. Fill, discard the first pitcher, then drink.
Specifications
- Fits
Duryn One, every edition
- Capacity
200 L (about 52 US gal) or 3 months
- Water
Municipally treated tap water, 4–30 °C
- Testing
Activated carbon certified to NSF/ANSI 42 and 372; tested to NSF/ANSI 53 and 401 at IAPMO R&T
- Made in
Assembled in India
Reviews
Complete the set
Questions
How do I know when to replace it?
Every 3 months or 200 litres, whichever comes first. We email a reminder from the day your cartridge ships. On the Refill Plan the next one arrives before you need it.
Can I switch between Clean, Alkaline and Softener?
Yes. All three have the same click-in fit, so you can change any time. On the Refill Plan, change the cartridge type in your account before the next delivery.
Does it fit the first-drop pitcher?
Yes. Every Duryn One uses the same cartridge mount.
Do I need to prime a new cartridge?
Rinse it under the cold tap for 30 seconds, click it in, and discard the first full pitcher. After that, drink.
Will it fit a Brita or another pitcher?
No. The click mount is Duryn's own design, and the cartridge only fits the Duryn One.