GRAYL Replacement Cartridges

Match GRAYL GeoPress, UltraPress, titanium, and legacy Ultralight purifiers with the correct replacement cartridge and lifespan guidance.

Related guides

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All GRAYL guides

• Choose a purifier

• GeoPress vs UltraPress

• Hiking and camping

• International travel

• GeoPress guide

• UltraPress guide

• Complete GRAYL range

• Purifier vs filter bottle

• Travel purifier checklist

• Field-use guide

• Replacement cartridges

• When to replace a cartridge

• GeoPress with a spare

• UltraPress with a spare

• Parts and accessories

GRAYL GeoPress and UltraPress cartridges are not interchangeable. Match the replacement to the name on your bottle:

• GeoPress or GeoPress Ti: use the GeoPress Replacement Cartridge.

• UltraPress or UltraPress Ti: use the UltraPress Replacement Cartridge.

• Older Ultralight Compact Purifier: verify the separately listed Ultralight Replacement Filter.

Cartridge compatibility table

The similar words “UltraPress” and “Ultralight” do not prove compatibility. Current UltraPress owners should select the product explicitly named UltraPress Replacement Cartridge.

GeoPress cartridge

The GeoPress cartridge supports both the standard 710 ml bottle and GeoPress Ti. Published specifications include:

• up to 350 purification cycles;

• up to 250 litres;

• approximately eight seconds per 710 ml with a fresh cartridge under suitable conditions;

• replacement when press time reaches around 25 seconds or three years after first use;

• sealed shelf life of up to ten years when stored correctly.

The 68travel product is currently listed in black and orange variants; check the live selector for availability.

Choose a GeoPress Replacement Cartridge

UltraPress cartridge

The UltraPress cartridge supports the current 500 ml UltraPress and UltraPress Ti families. Published specifications include:

• up to 300 purification cycles;

• up to 150 litres;

• approximately ten seconds per 500 ml with a fresh cartridge under suitable conditions;

• replacement when press time reaches roughly 25–30 seconds or three years after first use.

When a spare cartridge makes sense

Consider a sealed spare when:

• the trip is long or remote;

• local access to the exact cartridge is uncertain;

• more than one person will use the purifier;

• the installed cartridge already presses noticeably slower;

• the purifier is part of an emergency kit;

• you want to avoid interrupting use while waiting for delivery.

For ordinary local use, track the first-use date and press time instead of replacing a cartridge prematurely.

How water quality affects lifespan

The published cycle and litre figures are maximum ratings. Silt, sediment, and tannins reduce cartridge life and increase resistance. Choose the clearest freshwater available and pre-filter visible debris when necessary.

Cold water may temporarily take longer to press. Diagnose replacement need under typical conditions rather than from one unusually cold cycle.

Cartridge storage and care

• Perform a dry press after use as directed.

• Remove and air-dry the cartridge thoroughly before long storage.

• Do not wash the cartridge with soap or cleaning agents.

• Keep an unused spare sealed until needed.

• Record the date the installed cartridge first touched water.

Sources and limitations

Replacement cartridges restore the bottle’s intended performance; they do not expand its use. GRAYL cartridges do not desalinate seawater or brackish water and are not designed for industrial spills, extreme chemical contamination, nuclear incidents, or toxic blue-green algae.

Technical figures and operating limits on this page are based on GRAYL's published specifications and instructions:

• GRAYL GeoPress replacement-cartridge specifications

• GRAYL UltraPress replacement-cartridge specifications

• GRAYL freshwater, cartridge-life and storage guidance

• GRAYL guides and cartridge manuals

These are manufacturer-published benchmarks, not a guarantee for every source. Press time and cartridge life vary with water quality, sediment, temperature, cartridge age, and user technique. Use suitable freshwater only: GRAYL cartridges do not desalinate salty or brackish water and are not intended for industrial spills, extreme chemical contamination, nuclear incidents, or toxic blue-green algae. Follow local advisories and choose another source when conditions exceed the manufacturer's guidance.

Frequently asked questions

Can I use a GeoPress cartridge in UltraPress?

No. The families use different cartridge sizes.

Does GeoPress Ti need a titanium-specific cartridge?

No. It uses the GeoPress cartridge family.

Does UltraPress Ti need a titanium-specific cartridge?

No. It uses the UltraPress cartridge family.

Should I replace by litres or by press time?

Use the published capacity as a planning figure and press time as the practical signal. Replace at around 25 seconds under normal conditions, or after three years from first use.

Can I store a spare for years?

GRAYL publishes up to ten years for an unused airtight cartridge stored properly. Keep it sealed and follow storage guidance.

Choose your replacement

Browse GRAYL cartridges and accessories at 68travel