UltraPress® Purifier Cartridge

Grayl UltraPress® Replacement Purifier Cartridge

Compact Cartridge for Global Water Security and Field Survival

The Grayl UltraPress® Replacement Cartridge is engineered for lightweight travel and high-risk environments where water reliability can’t be assumed. Whether you’re operating overseas in unstable regions, traveling through remote towns with questionable water infrastructure, or preparing for emergency contingencies, this cartridge delivers complete protection from waterborne threats in a compact footprint.

Built for the Mission

• Removes Viruses, Bacteria & Protozoa – Eliminates 99.99% of viruses, 99.9999% of bacteria, and 99.9% of protozoan cysts, including Rotavirus, Hepatitis A, Norovirus, E. coli, Giardia, Cryptosporidium, and more.

• Filters Harmful Contaminants – Electroadsorption and activated carbon remove silt, microplastics, heavy metals, PFAS, pesticides, and volatile organic compounds (VOCs).

• Optimized for Foreign Travel – Trusted for international deployment in locations where even hotel tap water can’t be trusted. Ideal for contractors, diplomatic security, and global field work.

• Compact & Lightweight – Smaller than the GeoPress cartridge, this model is ideal for reduced kit footprints or covert carry in urban environments.

• Drink Mix Compatible – Compatible with the UltraPress® One-Way Valve, allowing use with electrolytes and hydration mixes without compromising filter integrity.

How to Use

1. Locate the cartridge lock tab at the bottom of the Inner Press.

2. Pull the tab and unscrew the used cartridge (lefty loosey).

3. Insert the new cartridge and rotate clockwise until you feel a solid click.

4. If using drink mixes, install the One-Way Valve before pressing.

Specifications

• Active Technology: Electroadsorption + ultra-powdered activated carbon

• Removes:

  • 99.99% Viruses

  • 99.9999% Bacteria

  • 99.9% Protozoan cysts

  • Contaminants: microplastics, silt, PFAS, VOCs, pesticides, heavy metals, chlorine, and taste/odor compounds

• Flow Rate: 10 seconds per 16.9 oz (3 L/min)

• Cartridge Lifespan: 300 cycles (40 gal / 150L) or 3 years after first use

• Shelf Life (Unopened): 10 years

• Size: 2.9" H × 2.7" W (7.3 × 6.7 cm)

• Weight: 2.8 oz (80 g)

• Compatibility: Grayl UltraPress® and Ultralight bottles

• Drink Mix Compatibility: Works with UltraPress® One-Way Valve (sold separately)

• Materials: BPA-free ABS food-grade plastic and food-grade silicone

• Chemical-Free Operation: Yes

• Testing Standards: Meets or exceeds NSF/ANSI 42 & 53; EPA microbial purification standards

• Origin: Designed in the USA; media made in USA; cartridge assembled in China

Maintain your water security across borders and in the field. The UltraPress® Replacement Cartridge is a lightweight, battle-tested upgrade to your travel and survival loadout—trusted by professionals who operate where failure isn't an option.