Grayl UltraPress® Purifier Nature

Grayl UltraPress® Purifier Nature

Grayl

Grayl UltraPress® Purifier Nature by Grayl is a higher-value water option for hikers comparing performance, pack trade-offs, and trip fit rather than just lowest price.

Key facts

  • Price: £90.00
  • Weight: 354g
  • Type: Portable Water Filters & Purifiers
  • Meal type: equipment
  • No cook

Best for

  • water treatment on multi-day trips
  • safer refills in uncertain water conditions
  • hikers who want less risk around hydration

Things to know

  • Water treatment choices depend on source quality, speed, and group size.
  • Purification and filtration are not identical jobs.
  • The right option depends on the route and refill pattern.

Avoid if

  • you only need a basic bottle with no treatment function

How it fits into a trip

Best on routes where reliable water treatment improves flexibility and reduces dependence on perfect refill sources.

About this product

Enhance your GeoPress experience! Updated in April 2023, the Grayl GeoPress Cartridge feature a redesigned "core" and "flow channels" that include a One-Way Valve, allowing you to safely use electrolytes, drink mixes, and other flavored liquids.

Note: the GeoPress® One-Way Valve ships pre-installed in every GeoPress Bottle.

These replacement purifier cartridges for the GeoPress offer up to 350 uses (65 gallons / 250 litres).

While lifespan may decrease with water containing heavy silt, sediment, or tannins, the cartridge remains effective throughout.

As the cartridge ages, pressing time will lengthen—once it hits 25-30 seconds, it’s time for a replacement.

Even with slower press times, protection continues.

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