---
title: "Grayls Filter Out Viruses and Are 25% Off for Prime Day"
description: "One of the best titanium water filters for dealing with norovirus is on big discount for Amazon Prime Day 2025"
date: "2025-07-09"
modified: "2025-07-09"
authors:
  - name: "Laura Lancaster"
    job_title: "Contributor"
    link: "https://www.outdoorlife.com/authors/laura-lancaster/"
url: "https://www.outdoorlife.com/gear/grayl-filters-out-viruses-and-its-25-off-for-prime-day/"
categories:
  - "Adventure"
  - "Gear"
tags:
  - "Gear Reviews"
---

# Grayls Filter Out Viruses and Are 25% Off for Prime Day

![Grayl ultrapress in titanium](<https://www.outdoorlife.com/wp-content/uploads/2025/07/Grayl-titanium-ultrapress-prodcut-pic.jpg>)
*Photo by Laura Lancaster*

Most [backpacking water filters](<https://www.outdoorlife.com/gear/best-backpacking-water-filters/>) only take out bacteria and protozoa, but the Grayl filter takes it a step further by also removing viruses. This is especially important if you are traveling to a part of the world where norovirus is a real concern. The titanium models are a little pricier, but give the filter a sleek appearance. You can also use them as a cooking pot in a pinch.

**Read Next:** [The Best Backpacking Water Filters](<https://www.outdoorlife.com/gear/best-backpacking-water-filters/>)

## Titanium Grayl Filters Are $45 Off

- [Grayl Ultrapress](<https://www.amazon.com/GRAYL-UltraPress-Titanium-Backpacking-Bushcraft/dp/B0C1JHMFZZ?tag=camdenxodl-20>) is $135

## Polypropylene Grayl Fitlers Are $18 Off

- [Grayl GeoPress](<https://www.amazon.com/GRAYL-GeoPress-Water-Purifier-Bottle/dp/B08TTXBHRW?tag=camdenxodl-20>) is $80
- [Grayl UltraPress](<https://www.amazon.com/GRAYL-UltraPress-Purifier-Backpacking-Redrock/dp/B09JRRTMWM?tag=camdenxodl-20>) is $72

## Author
Laura Lancaster is an Outdoor Life's gear writer where she focuses on in-depth testing of backpacking and camping gear, with a particular interest in lightweight and ultralight gear. She lives in the Pacific Northwest with her husband and daughter.

### Author social links  
[Instagram](<https://www.instagram.com/outdoor_life/>)