UltraPress® Purifier Cartridge UltraPress® Purifier Cartridge
UltraPress® Purifier Cartridge UltraPress® Purifier Cartridge
UltraPress® Purifier Cartridge UltraPress® Purifier Cartridge
UltraPress® Purifier Cartridge UltraPress® Purifier Cartridge
UltraPress® Purifier Cartridge UltraPress® Purifier Cartridge
UltraPress® Purifier Cartridge UltraPress® Purifier Cartridge
UltraPress® Purifier Cartridge UltraPress® Purifier Cartridge
UltraPress® Purifier Cartridge UltraPress® Purifier Cartridge
UltraPress® Purifier Cartridge UltraPress® Purifier Cartridge
UltraPress® Purifier Cartridge UltraPress® Purifier Cartridge
UltraPress® Purifier Cartridge
UltraPress® Purifier Cartridge
UltraPress® Purifier Cartridge
UltraPress® Purifier Cartridge
UltraPress® Purifier Cartridge
UltraPress® Purifier Cartridge
UltraPress® Purifier Cartridge
UltraPress® Purifier Cartridge
UltraPress® Purifier Cartridge
UltraPress® Purifier Cartridge

GRAYL

UltraPress® Purifier Cartridge

$24.95
Color: black

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.

Color: black

Product information

Stay Ready Outdoors — Return & Refund Policy

Last Updated: September 22, 2025

At Stay Ready Outdoors, we stand behind the quality of our products and want you to be completely satisfied with your purchase. If you need to return an item, please review our policy below.


Returns

We offer a 30-day return policy, meaning you have 30 days from the date you receive your item to request a return.


Return Eligibility

To qualify for a return, your item must be in like-new condition, meeting the following criteria:

  • Unworn, unwashed, and with all original tags and stickers still attached.

  • Free of any scents like perfume, cologne, or smoke.

  • Free of any marks, stains, or pet hair.

  • In its original packaging, including all accessories.

  • Must include proof of purchase (receipt or order number).


How to Start a Return

To initiate a return, email us at crquarto@stayreadyoutdoors.com with your order details. Once approved, you’ll receive return instructions and a prepaid shipping label. The cost of return shipping will be deducted from your final refund.

Important: Items sent back without prior approval will not be accepted.

Return Address:
Stay Ready Outdoors
ATTN: Returns
15236 Las Flores Ave
La Mirada, CA 90638


Damaged, Defective, or Incorrect Items

Please inspect your order upon arrival. If your item is damaged, defective, or incorrect, contact us at crquarto@stayreadyoutdoors.com within 7 days so we can evaluate and resolve the issue promptly.


Non-Returnable Items & Exceptions

Some items are non-returnable, including:

  • Briefs (due to hygiene reasons)

  • Sale items (these sales are final)

  • Gift cards

  • Engraved or customized items

  • Perishable goods (e.g., food)

  • Personal care items (e.g., hygiene or beauty products)

  • Hazardous materials (e.g., flammable liquids or gases)


Food or Drink Products – All Sales Final

Due to the nature of long-term food storage, all sales on food or drink products are final. We do not accept returns or exchanges on food or drink products for any reason including incorrect order, change of mind, or shipping delays. Replacements will only be issued in the event of a verified manufacturing defect or shipping damage, which must be reported within 5 days of delivery with supporting photo documentation.


Products Fulfilled via Shopify Collective

Some items sold by Stay Ready Outdoors are fulfilled by third-party vendors through Shopify Collective. These items follow slightly different return procedures:

  • Return Window – Returns must be initiated within 30 days of the purchase date.

  • Who Handles the Return – Returns and exchanges for these products are handled directly by the business from which the product originated. However, please do not hesitate to contact Stay Ready Outdoors at crquarto@stayreadyoutdoors.com if you need help facilitating a return or exchange — we’re happy to assist.

  • Customer Responsibility for Shipping Costs – Shipping cost responsibility for returns and exchanges varies by vendor. Some vendors offer free returns or exchanges, while others may require customers to pay return shipping.

  • Size Exchanges – If a return is for a size exchange only, the replacement item will be shipped back to the customer once the original is received and inspected, following the vendor’s policy.

  • Refunds – If a refund is due after inspection, the originating business will notify Stay Ready Outdoors and the refund will be processed back to the customer’s original payment method.

  • Price Changes – Prices for products fulfilled via Shopify Collective are subject to change without notice.

Vendor-Specific Note:

  • The Buffalo Wool Company – Items fulfilled by The Buffalo Wool Company through Shopify Collective follow the same return procedures listed above. Customers are responsible for the cost of shipping items back for return or exchange.

All other eligibility requirements and non-returnable item restrictions in our standard policy still apply unless otherwise stated above.


Exchanges

The fastest way to exchange an item is to initiate a return for the original item and, once the return is accepted, place a new, separate order for the item you want.


European Union Customers – 14-Day Cooling-Off Period

If your order was shipped to the European Union, you have the right to cancel or return it within 14 days of delivery, for any reason. To be eligible, items must be unused, with original tags and packaging, and include proof of purchase.


Refunds

Once we receive and inspect your return, we will notify you of its approval. If approved, we will issue a refund to your original payment method within 10 business days, less the cost of return shipping.

Please Note:

  • It may take additional time for your bank or credit card company to process and post the refund.

  • If you haven’t received your refund within 15 business days of our approval, please contact us at crquarto@stayreadyoutdoors.com.


Need Help?

If you have any questions about your return or refund, we’re here to help:

📧 Email: crquarto@stayreadyoutdoors.com

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