---
product_id: 460813760
title: "GRAYL500-MOS UltraPress 473 ml (16 oz) Drinking Water Filter Bottle Water Filter for Outdoor Hiking, Camping, Survival and Travel"
price: "884 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/460813760-grayl500-mos-ultrapress-473-ml-16-oz-drinking-water-filter
store_origin: PL
region: Poland
---

# GRAYL500-MOS UltraPress 473 ml (16 oz) Drinking Water Filter Bottle Water Filter for Outdoor Hiking, Camping, Survival and Travel

**Price:** 884 zł
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** GRAYL500-MOS UltraPress 473 ml (16 oz) Drinking Water Filter Bottle Water Filter for Outdoor Hiking, Camping, Survival and Travel
- **How much does it cost?** 884 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/460813760-grayl500-mos-ultrapress-473-ml-16-oz-drinking-water-filter)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

GRAYL500-MOS UltraPress 473 ml (16 oz) Drinking Water Filter Bottle Water Filter for Outdoor Hiking, Camping, Survival and Travel

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Flow Rate | 3 Liters Per Minute |
| Purification Method | Electroadorption, Activated Carbon |
| Additional Features | Electrolyte & Sport Drink Mix Ready |
| Container Type | Bottle |
| Capacity | 16.9 Fluid Ounces |
| Item Weight | 12.5 Ounces |
| Item Dimensions L x W x H | 2.95"L x 2.95"W x 9.75"H |
| Material Type | Polypropylene |

## Images

![GRAYL500-MOS UltraPress 473 ml (16 oz) Drinking Water Filter Bottle Water Filter for Outdoor Hiking, Camping, Survival and Travel - Image 1](https://m.media-amazon.com/images/I/51V7k6m9qAL.jpg)

## Questions & Answers

**Q: If i'm traveling say for a 5 days with the ultrapress, when do i need to do a short term storage?  each night or not until i return from trip?**
A: No. No need for storage preparation for overnight. When storing between uses (5 days or more) we recommend 1. Dry press 2. Disassemble 3. Air dry 48-96 hrs 4. Reassemble and seal. Stores indefinitely. 

Detailed instructions are found in the packaging and on our website. 

Have a great trip!

**Q: would I gradually wear out the filter if I use the water bottle daily but only refill through the top with water that’s already purified?**
A: Yes. If you pour water in the top without filtering, you will not harm the cartridge. But top-poured water will - slowly - remove some of the chemical impurities from the water. Over time, the cartridge will slowly 'use up' its lifetime.

VERY IMPORTANT: to remove pathogens, you must us regular Fill. Press press though the purifier. Pouring water in the top does NOT protect against bacteria, protozoa or virus. 

For safety, our recommendation is to use regular 'Fill. Press. Drink.' action. FPD is the only way to remove pathogens and will alway remove more chemicals than pouring in potable water from the top. But 'top pour' will not damage your UltraPress or GeoPress. Thanks for the question.

**Q: If I left the bottle with water in the hot car during the summer,  does that ruin the filter?**
A: No. According to some internet research, cars can get to about 160F (70C) in the hot sun. A GRAYL bottles can withstand temperatures to 185F (85C). Do not use the cartridge with boiling water (200F+). Thanks for your question.

**Q: Does it keep the water cold? And can you add ice?**
A: GRAYL’s double layer design will retain coolness longer than a single wall bottle, but not as well as a double wall, vacuum insulated bottle. Clean ice is fine to add to the top of the inner press. Stay cool out there!  Grayl

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-02-06*