---
product_id: 337013321
title: "Waterdrop Gravity Water Filter Straw, Camping Water Filter, 0.1 Micron"
brand: "waterdrop"
price: "€ 70.20"
currency: EUR
in_stock: true
reviews_count: 13
category: "Waterdrop"
url: https://www.desertcart.ie/products/337013321-waterdrop-gravity-water-filter-straw-camping-water-filter-0-1
store_origin: IE
region: Ireland
---

# 700 ml/min max flow rate 5-stage ultrafiltration @0.1μm 1.5 gal gravity-fed reservoir Waterdrop Gravity Water Filter Straw, Camping Water Filter, 0.1 Micron

**Brand:** waterdrop
**Price:** € 70.20
**Availability:** ✅ In Stock

## Summary

> 💦 Stay ahead of thirst with gravity-powered purity!

## Quick Answers

- **What is this?** Waterdrop Gravity Water Filter Straw, Camping Water Filter, 0.1 Micron by waterdrop
- **How much does it cost?** € 70.20 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/337013321-waterdrop-gravity-water-filter-straw-camping-water-filter-0-1)

## Best For

- waterdrop enthusiasts

## Why This Product

- Trusted waterdrop brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fast Flow, No Wait:** Up to 700 ml/min flow rate means you spend less time filtering and more time adventuring.
- • **Hydrate Like a Pro:** 1.5-gallon gravity-fed bag supplies all-day hydration—equivalent to 11 bottled waters in one pack.
- • **Versatile & Compact:** Connects to bottles or bags, perfect for backpacking, travel, or emergency prep—stay prepared in style.
- • **Ultra-Pure Hydration:** 5-stage filtration removes chlorine, sediment, odor & harmful particles for crisp, clean water anywhere.
- • **Built to Last & Reuse:** Filter lifespan up to 1,400 gallons with easy backwash cleaning—eco-friendly and ready for every trip.

## Overview

The Waterdrop Gravity Water Filter Straw is a professional-grade, 5-stage ultrafiltration system featuring a 0.1-micron hollow fiber membrane that removes contaminants and improves taste. It includes a 1.5-gallon gravity-fed water bag and two filter straws, delivering up to 700 ml/min flow rate and a lifespan of 1,400 gallons. Lightweight, reusable, and versatile, it’s designed for camping, backpacking, travel, and emergency preparedness.

## Description

Waterdrop Gravity Water Filter Straw, Camping Water Filtration System, Water Purifier Survival for Travel, Backpacking and Emergency Preparedness, 1.5 gal Bag, 5 Stage Filtration, Pack of 2: desertcart.com: Industrial & Scientific

Review: Awesome, it works, and gives you a lot of options - This filter is awesome, used it on a three day backpacking trip recently. No issues whatsoever. For everyone’s information however, the reservoir bag does not seal fully when filled. The top, although it folds nicely into a handle for carrying - which is amazing and super convenient - it does not prevent water from coming out the top if you, let’s say, put the bag down on the ground to get the straps adjusted or something. So the reservoir is not for carrying water for long distances, unless you’re prepared to always keep it upright and never put it down until you can hang it. Still super doable if you’re going short distances, it doesn’t spill when you’re holding it by the handle, just if you put it down on the ground while filled and it falls over. Other than that, this kit is awesome. Gives you the option of reversing the steps, instead of filtering the water into the small plastic water bottle pouch, you fill the plastic bag with the unfiltered water, screw the filter straw onto the pouch, and drink it directly out of the filter (basically a life straw). I think the bag might be half a liter that it comes with, so if you want a bigger pouch then you’ll have to order one. This is the way I’ve seen most through hikers using it, usually with the sawyer filter setup. But this filter gives you both options, filter the clean water from the reservoir into the plastic flexi pouch or any other bottles you want, or collect the unfiltered water into the flexi pouch, attach the filter directly to the pouch, and drink through the filter. Super lightweight, condenses into a really small volume, durable (I carried water in the reservoir for more than 5 miles, by hand, leaning it against a tree when I had to put it down, and the material held up). We used it for three days and that was more than two weeks ago, long enough for any water born sicknesses to have shown if it didn’t work. Great purchase.
Review: Lightweight and a Great piece of mind at a reasonable price. - This arrived quickly and appears to be very compact and efficient, though I'm saving it for emergencies, since my well water is good and deep. This is for true emergencies and I believe it should work well, based on the design and components. Lightweight and would work well in backpacking scenarios. A great little product.

## Features

- 5-Stage Efficient Filtration: With adoption of premium-quality 0.1 um ultrafiltration membrane and other raw materials, the Water Filter Straw can effectively reduce harmful substances like chlorine, particulates, sediment, stones, sand, dirt, bad taste &odor in water to ensure the water safety and deliver better drinking experience.
- Professional Combination: Waterdrop Gravity Water Filter Straw with 1.5 gal Gravity-Fed Water Bag is an exclusive water purification combination created for outdoor activities and first aid survival. The large-capacity water bag can hold up to 1.5 Gallons of water at a time, which is about 11 bottles of 500 ml bottled purified water, and can meet the all-day demand for outdoor water drinking.
- Longer Lifespan: The Waterdrop Filter straw can provide safe drinking water up to 1,400 gallons (5,300 liters), and ensures the maximum water flow rate of up to 700 ml/min to provide more relaxed outdoor water drinking experience.
- Recyclable Straw: With innovative backwash purifier function, the inside of the Water Filter Straw can be kept clean at all times and it is recyclable, safe and pollution-free. If the water flow decreases or the filter has been used for a long time, you can remove the mouthpiece, flush it with clean water. (Standard water bag can be used or pop bottle with thread diameter of 27.5mm can be filled clean water for backwashing the filter straw.)
- Versatile Uses: The Water Filter Straw can be connected with water bags or water bottles to filter water for drinking. Both ends of it can be disassembled and connected with the water bags and the water bottles to offer you clean drinking water anytime anywhere.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09285L8JL |
| Best Sellers Rank | #2,240 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #8 in Camping & Hiking Water Filters |
| Brand | Waterdrop |
| Brand Name | Waterdrop |
| Capacity | 1.5 gallons |
| Container Type | Bag |
| Customer Reviews | 4.6 out of 5 stars 3,612 Reviews |
| Included Components | Water Filter Straw *2, 1.5 Gal Gravity-Fed Water Bag *1, 16 oz Water Pouch *2 |
| Installation Type | Freestanding |
| Item Dimensions L x W x H | 10.16"L x 3.39"W x 11"H |
| Manufacturer | Waterdrop |
| Material | Hollow Fiber Ultrafiltration Membrane |
| Material Type | Hollow Fiber Ultrafiltration Membrane |
| Maximum Flow Rate | 700 Milliliters Per Minute |
| Model Name | WD-FSBUL |
| Model Number | WD-FSBUL |
| Other Special Features of the Product | Gravity Water Filter Straw, Water Purifier Survival |
| Part Number | WD-FSBUL |
| Power Source | Non Electric |
| Product Dimensions | 10.16"L x 3.39"W x 11"H |
| Purification Method | Hollow Fiber Ultrafiltration Membrane |
| Smart Home Compatibility | Not Smart Home Compatible |
| Special Feature | Gravity Water Filter Straw, Water Purifier Survival |
| Supported Water TDS Level Maximum (PPM) | 500 |
| Unit Count | 2.0 Count |
| Warranty Description | 30 days limited filter warranty - Any part of the water filter which fails due to a defect in materials or workmanship during this limited 30-day warranty. |

## Product Details

- **Brand:** Waterdrop
- **Capacity:** 1.5 Gallons
- **Included Components:** Water Filter Straw *2, 1.5 Gal Gravity-Fed Water Bag *1, 16 oz Water Pouch *2
- **Installation Type:** Freestanding
- **Material:** Hollow Fiber Ultrafiltration Membrane
- **Package Information:** Bag
- **Power Source:** Non Electric
- **Product Dimensions:** 10.16"L x 3.39"W x 11"H
- **Purification Method:** Hollow Fiber Ultrafiltration Membrane
- **Special Feature:** Gravity Water Filter Straw, Water Purifier Survival

## Images

![Waterdrop Gravity Water Filter Straw, Camping Water Filter, 0.1 Micron - Image 1](https://m.media-amazon.com/images/I/61-bojP1RaL.jpg)

## Available Options

This product comes in different **Number Of Items** options.

## Questions & Answers

**Q: Can the straw be used on its own, the way the Life Straw can?**
A: Hi,
Thanks for your question.
Please rest assured that it can be used on its own.
If you have any other questions,please feel free to contact us.
Kind Regards
Mia Lauren
Customer Service Rep

**Q: Can I buy replacement filters for it?**
A: Hi,

Thanks for your interest in our filter straw product.

Please rest assured that you can reverse-flush the straw (instruction included) to prolong its lifetime; furthermore, you can also purchase a new filter straw to replace the old one:

Link:  https://www.amazon.com/Waterdrop-Portable-Filtration-Emergency-Backpacking/dp/B086QKX42Q/?th=1&psc=1

If you have contacted us via email but received no reply, please check the Spam/Junk Folder first. Thank you.

If you have any other inquiries, please feel free to contact us.
1-888-352-3558 (8:00 AM - 5:00 PM PST, Mon - Fri).

Kind Regards
Mia Lauren　
Customer Service Rep

**Q: To confirm, are 4 20 oz BPA-free reusable collapsible water bags also included or this is just for the filter straws?**
A: Dear Aaliyah,
Thank you for your inquiry. 4 packs of 20 oz BPA-free reusable collapsible water bags are also included in the package.
Please don't hesitate to let me know if you have any other questions.

Kind Regards,
Mia Lauren
Customer Service Rep

**Q: How long does it take to gravity filter 1.5 gallons?**
A: Dear customer,
Thank you for your interest in our product.
Please note that it should take around 11-12 minutes to gravity filter 1.5 gallons.
If you have contacted us via email but received no reply, please check the Spam/Junk Folder first. Thank you.
If you have any other inquiries, please feel free to contact us.
1-888-352-3558 (8:00 AM - 5:00 PM PST, Mon - Fri).
Kind Regards
Mia Lauren　
Customer Service Rep

## Customer Reviews

### ⭐⭐⭐⭐⭐ Awesome, it works, and gives you a lot of options
*by D***L on August 12, 2025*

This filter is awesome, used it on a three day backpacking trip recently. No issues whatsoever. For everyone’s information however, the reservoir bag does not seal fully when filled. The top, although it folds nicely into a handle for carrying - which is amazing and super convenient - it does not prevent water from coming out the top if you, let’s say, put the bag down on the ground to get the straps adjusted or something. So the reservoir is not for carrying water for long distances, unless you’re prepared to always keep it upright and never put it down until you can hang it. Still super doable if you’re going short distances, it doesn’t spill when you’re holding it by the handle, just if you put it down on the ground while filled and it falls over. Other than that, this kit is awesome. Gives you the option of reversing the steps, instead of filtering the water into the small plastic water bottle pouch, you fill the plastic bag with the unfiltered water, screw the filter straw onto the pouch, and drink it directly out of the filter (basically a life straw). I think the bag might be half a liter that it comes with, so if you want a bigger pouch then you’ll have to order one. This is the way I’ve seen most through hikers using it, usually with the sawyer filter setup. But this filter gives you both options, filter the clean water from the reservoir into the plastic flexi pouch or any other bottles you want, or collect the unfiltered water into the flexi pouch, attach the filter directly to the pouch, and drink through the filter. Super lightweight, condenses into a really small volume, durable (I carried water in the reservoir for more than 5 miles, by hand, leaning it against a tree when I had to put it down, and the material held up). We used it for three days and that was more than two weeks ago, long enough for any water born sicknesses to have shown if it didn’t work. Great purchase.

### ⭐⭐⭐⭐⭐ Lightweight and a Great piece of mind at a reasonable price.
*by J***S on May 3, 2026*

This arrived quickly and appears to be very compact and efficient, though I'm saving it for emergencies, since my well water is good and deep. This is for true emergencies and I believe it should work well, based on the design and components. Lightweight and would work well in backpacking scenarios. A great little product.

### ⭐⭐⭐⭐⭐ An efficient, lightweight, and fast water filtration system.
*by D***S on July 17, 2025*

This is a great water filtration system for camping. For those who are used to pumping to get clean water, this will be a pleasant revelation. For those who have used other gravity feed systems this will be an inexpensive and surprisingly quick alternative. I recently used this on a 4 day backpacking trip and love it. Here are a few highlights: 1. The feed back is lightweight, flexible, and fills to 1.5 gallons in one scoop of lake water. (BTW, don't fill it all the way to 1.5 gallons--it'll work better at about 1.25 gallons.) My friend is going to purchase the bag simply because it's so much easier and more efficient than the bag his (very expensive) system came with. 2. The filter has a bigger barrel than my Sawyer, and thus flows at about twice the speed. 3. The filter can be back flushed with the provided collapsible bottle--no need to bring along a syringe for back flushing. 4. The hanging system (also provided) is high quality and works great. Here's what I don't know: 1. My friend and I suffered no symptoms of waterborne illness, but the flow rate was so strong when we first started using the system that I was worried that it might not be filtering. What can I say? I guess I'm suspicious because it worked so well! The flow rate did decrease on the 4th day (after filtering about 11 gallons of water). But even the reduced rate was similar to my Sawyer filter. 2. The instructions didn't say anything about back flushing. I went ahead and back flushed when I got home, since every other filter I've used makes some provision for cleaning/flushing. I don't think it damaged it, but don't know for sure. I'd love someone from the company to respond to that question.

## Frequently Bought Together

- Waterdrop Gravity Water Filter Straw, Camping Water Filtration System, Water Purifier Survival for Travel, Backpacking and Emergency Preparedness, 1.5 gal Bag, 5 Stage Filtration, Pack of 2
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- Aquatabs 397mg Water Purification Tablets (100 Pack). Water Filtration System for, Camping, Boating, Emergencies, Survival, RVs, and Marine-Use. Easy to Use Treatment and Disinfection.

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-07-23*