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The GRAYL GeoPress® Purifier – 24oz Covert Edition is a self-contained press-operated water purification system built for travelers, outdoor professionals, and operators working in environments where safe drinking water cannot be assumed.

Designed to purify water from taps, wells, rivers, or lakes in about eight seconds, the GeoPress uses a combination of electroadsorptive filtration, activated carbon, and mechanical filtration to remove pathogens, chemicals, heavy metals, and microplastics. No pumps, hoses, batteries, or setup required.

"A prudent person foresees danger ahead and takes precautions. The simpleton goes blindly on and suffers the consequences. - Proverbs 27:12"

— CHARLES, SRO FOUNDER & FORMER LAW ENFORCEMENT.

Removes Viruses

Most outdoor filters only remove bacteria and protozoa. The GRAYL purifier also removes viruses, which are common in contaminated tap water and urban water sources

No Pumping or Setup

Unlike pump filters or gravity systems, purification takes about eight seconds with a simple press

Treats Tap Water Overseas

Designed specifically for international travel and environments where municipal water systems are unreliable

Handles Chemicals and Heavy Metals

Activated carbon removes pesticides, industrial contaminants, and improves taste and odor

Self-Contained System

No hoses, bags, or extra components required

Full-Spectrum Water Protection

Removes viruses, bacteria, protozoa, chemicals, heavy metals, sediment, and microplastics from suspect water sources

Rapid Press Purification

Produces 24 oz of clean drinking water in about eight seconds with no pumping or waiting

Reliable in Remote Environments

Works anywhere water is available including taps, wells, rivers, lakes, and surface sources

Drink-Mix Compatible System

Integrated one-way valve prevents cross-contamination when using electrolytes or rehydration mixes

Rugged Field Construction

Drop tested to 10 feet at full capacity with non-slip grips and durable materials

Compact Self-Contained Platform

No hoses, batteries, or external components required

One-Way Electrolyte Valve

RiverFlow® spout

SimpleVent® cap

SoftPress® pads

TopoGrip® outer shell

Non-slip base

Fill the outer container with water from a tap, well, or surface source.

Insert the purifier cartridge and press down firmly.

Press for approximately eight seconds until purification is complete.

Open the spout and drink directly or pour into another container.

The numbers, flat and honest.

Capacity 24 oz (710 ml)
Weight 15.9 oz (450 g)
Dimensions 10.4 in height × 3.4 in base diameter
Purification Rate 24 oz in about 8 seconds
Cartridge Life 350 cycles / 65 gallons / 250 liters
Standards Meets NSF/ANSI P231, 42 & 53 and U.S. EPA purifier standards
Flow Rate approximately 5 liters per minute (8 seconds per press)
⸻ The SRO Standard

WHY YOU’RE BUYING FROM STAY READY.

We aren’t the Amazon of survival. We’re a small, opinionated shop that carries gear we’d stake our own lives on — and we back every piece with real support.

01

Curated

Every brand we carry has been vetted in the field by our team. If it doesn’t pass our 30-day use test, we don’t stock it.

02

Authenticated

Factory-direct from authorized dealers. No grey-market, no refurb, no knockoffs. Your warranty is real.

03

Supported

Real humans on phone, text, and email — seven days a week. We carry this gear ourselves and we stand behind it.

04

American

HQ in California. Orders ship from our US warehouse. US-based customer care.

PRESS-TO-PURIFY WATER BOTTLES

From a Seattle napkin sketch to the fastest, easiest portable water purifier in the world.

GRAYL started as a napkin sketch in a Seattle bar — an obsession with making the perfect portable water purifier. The first Kickstarter raised over $250,000, and today GRAYL's GeoPress and UltraPress let you press-purify water from streams, hotel sinks, wells, and lakes in seconds. The mission is straightforward: empower adventure with clean, safe water anywhere. A minimum of 1% of every sale goes to environmental charities and non-profits.

  • Founded in Seattle, Washington
  • Originated from a napkin sketch in a hometown Seattle bar
  • Kickstarter campaign raised over $250,000
  • GeoPress and UltraPress — press-to-purify in seconds
  • 1% of every sale donated to environmental nonprofits

Answers, straight up.

Product-specific questions on the left. Shopping with SRO on the right. Both open-ended — hit us if we missed one.

About this product
What contaminants does the GRAYL GeoPress remove?

The GeoPress removes viruses, bacteria, protozoa, chemicals, heavy metals, sediment, and microplastics while improving taste and odor.

How long does the purifier cartridge last?

Each cartridge treats about350 cycles or 65 gallons (250 liters)before replacement is recommended.

Can the GeoPress purify tap water overseas?

Yes. It is designed specifically for environments where tap water may be contaminated or unsafe.

Shopping with SRO
How long does shipping take?

Most orders process within 1–3 business days from our warehouse. From there: 5–7 business days economy, 2–3 business days expedited, or overnight if you need it fast. Free economy shipping on orders over $150 (contiguous US). Alaska, Hawaii, and Pro Eagle / freight items are quoted at checkout. You’ll get a tracking number and link the moment your order ships.

What’s your return policy?

30 days from the day your order arrives. Gear has to come back unused, with all original tags, stickers, and packaging intact. For standard items we’ll send a prepaid return label and deduct return shipping from your refund. Oversized or freight returns are on you, unless the item showed up damaged, defective, or wrong — in which case we cover it.

Refunds hit your original payment method within 10 business days of approval.

What can’t I return?

Final-sale items, gift cards, food and drink products, personal-care items, anything customized or engraved, briefs (hygiene), and hazardous materials. If you’re not sure whether something qualifies, email us before you order — we’ll tell you straight.

Do you ship outside the contiguous US?

Yes. Alaska, Hawaii, and US territories ship on freight-quoted rates calculated after checkout. International orders are available worldwide at variable rates; duties and import fees are the customer’s responsibility. EU customers get a 14-day cancellation window per EU consumer law, on top of our standard return policy.

My package arrived damaged — what now?

Email info@stayreadyoutdoors.com within 7 days of delivery with your order number and clear photos of the damage (product + packaging). We’ll replace, refund, or ship a return label on us — no back-and-forth. Damaged, defective, or wrong-item claims never cost you shipping.

Can I talk to a human before buying?

Yes. Email info@stayreadyoutdoors.com — we answer every message ourselves, usually within a few hours during business days. We carry this gear, we use this gear, and we’d rather talk you out of a kit that doesn’t fit your mission than sell you the wrong one.

Do you offer a military/first-responder discount?

Yes. Active-duty and veteran military, police, fire, EMS, and medical first responders get 15% off every order. Verify through GovX at checkout — one-time, secure, and reusable across thousands of brands. Discount applies automatically once you’re verified.

IMPORTANT USE NOTES

• 10-year limited warranty on cartridge