Camping Essentials | Water Filtration & StorageGraylSold by Sportsmans Guide

Grayl

GRAYL 16.9-oz. UltraPress(R) Purifier Covert Edition

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Compact Size

Fits into pack pockets or

Requires Zero

Setup and uses a simple

Makes 16.9

Ounces of purified water in

Onepress Global

Protection is described as effective

Replaceable Purifier

Cartridge is rated for 300

$89.95
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SKU: WX2*0711201

Overview

Built for hunters and backcountry travelers who need a compact water solution, this purifier is designed to turn water from lakes, rivers, and bogs into drinkable water with minimal steps. Its discreet profile fits easily in a pack pocket or cup holder, and the zero-setup design makes it practical when you want fast water without extra gear. The system is intended for on-the-go filtration and purification for drinking, filling hydration reservoirs, or cooking, while the replaceable purifier cartridge is rated for 300 cycles. It is a focused tool for situations where convenience, speed, and low-profile carry matter more than carrying extra water.

Why Hunters Choose the Grayl

Compact Size

Fits into pack pockets or

Requires Zero

A simple Fill, Press, Drink

Produces 16.9

Ounces of purified water in

Discreet On-the-go

Use by hunters, backpackers, and

Replaceable Purifier

Cartridge is rated for 300

Key Features

  • Compact size fits into pack pockets or cup holders for discreet carry.
  • Requires zero setup and uses a simple Fill, Press, Drink process.
  • Makes 16.9 ounces of purified water in 10 seconds, at 3L/min.
  • OnePress global protection is described as effective on all 7 continents.
  • Replaceable purifier cartridge is rated for 300 cycles, or 40 gallons/150 liters.
  • RiverFlow spout supports fast-flow drinking and filling hydration reservoirs or bottles.

Best Used For

  • Hunters needing fast, discreet water treatment at remote camps or glassing spots
  • Backpackers and hikers who want compact purification without setup or extra gear
  • Travelers or adventurers filling hydration reservoirs, bottles, or cooking water on the move
  • Users drawing water from lakes, rivers, or bogs and needing purified drinking water quickly
  • Those prioritizing simple press-and-drink operation in a pack pocket or cup holder

Specifications

Bacteria ExamplesE. coli, Cholera, Salmonella, Dysentery
Capacity16.9-oz.
Chemical FiltrationUltra-powdered activated carbon filters particulates and adsorbs chemicals, pesticides, herbicides, flavors and odors
Comfort PadSoftPress(TM) ergonomic comfort pad
Continent CoverageAll 7 continents
Drink CapSimpleVent(TM) drink cap
Fits InAny pack pocket or cup holder
Flow Rate3L/min
Grip SurfaceTPE TopoGrip(TM)
HandleFlipCarry(TM) handle
Pathogens RemovedAll waterborne pathogens, including viruses, bacteria, and protozoa
ProtectionOnePress(TM) global protection
Protozoa ExamplesGiardia, Cryptosporidium, Amoebae
Purification Time10 seconds
Purifier TypeUltraPress(R) Purifier
Replaceable Purifier Cartridge Rating300 cycles (40 gal. / 150L)
Setup RequiredZero setup
SpoutRiverFlow(TM) spout
Use CasesDrinking, filling hydration reservoirs, cooking
Water SourcesLakes, rivers, and bogs

Pros

  • Compact size fits into pack pockets or cup holders for easy carry.
  • Requires zero setup, with a simple Fill, Press, Drink process.
  • Produces 16.9 ounces of purified water in about 10 seconds.
  • Designed for discreet on-the-go use by hunters, backpackers, and travelers.
  • Replaceable purifier cartridge is rated for 300 cycles, or 40 gallons.
  • RiverFlow spout supports fast-flow drinking and filling hydration reservoirs.

Considerations & Trade-offs

  • The purifier cartridge is rated for 300 cycles (40 gal. / 150L), so it is a consumable component that will need replacement over time.
  • It makes 16.9 oz. of purified water per press, which is efficient for personal use but may require repeated fills when serving multiple people or larger cooking needs.
  • The product is designed for fast, on-the-go purification, but it is still a press-style system rather than a simple bottle, so it adds a step compared with carrying untreated water.
  • Its compact, discreet design is useful in the field, but the smaller form factor may not suit users looking for higher-capacity water treatment in one pass.

Suggested Comparisons

  • Water purification systems
  • Portable water filters
  • Hydration accessories
  • Backcountry cooking water treatment products

Suggested Accessories

  • Hydration reservoir
  • Water bottle
  • Cleaning brush
  • Replacement purifier cartridge

Frequently Asked Questions

What makes the UltraPress Covert Edition useful for hunting trips?

It is described as compact, discrete, and designed for stealth on-the-go filtration and purification. The product copy says it fits into a pack pocket or cup holder, requires zero setup, and is intended for hikers, backpackers, hunters, and global adventurers.

What water sources can it be used with?

The source data says it can transform water from lakes, rivers, and bogs into drinkable water.

What does it remove from water?

The product description says it removes waterborne pathogens, including viruses, bacteria such as E. coli, Cholera, Salmonella, and Dysentery, as well as protozoa such as Giardia, Cryptosporidium, and Amoebae. It also says the ultra-powdered activated carbon filters particulates and adsorbs chemicals, pesticides, herbicides, flavors, and odors.

How much water does it make and how fast?

It makes 16.9 oz. of purified water in 10 seconds, listed as 3L/min.

How long does the purifier cartridge last?

The replaceable purifier cartridge is rated for 300 cycles, or 40 gal. / 150L, according to the provided product data.