---
product_id: 337013321
title: "Waterdrop Gravity Water Filter Straw, Camping Water Filter, 0.1 Micron | Survival Water Purifier for Hiking, Backpacking & Emergency Preparedness, Multi-Stage Filter with 1.5 Gallon Bag, 2 Pack"
brand: "waterdrop"
price: "¥22384"
currency: JPY
in_stock: true
category: "Waterdrop"
url: https://www.desertcart.jp/products/337013321-waterdrop-gravity-water-filter-straw-camping-water-filter-0-1
store_origin: JP
region: Japan
---

# 700 ml/min max flow rate 0.1 micron ultrafiltration membrane 1.5 gallon gravity-fed water bag capacity Waterdrop Gravity Water Filter Straw, Camping Water Filter, 0.1 Micron | Survival Water Purifier for Hiking, Backpacking & Emergency Preparedness, Multi-Stage Filter with 1.5 Gallon Bag, 2 Pack

**Brand:** waterdrop
**Price:** ¥22384
**Availability:** ✅ In Stock

## Summary

> 💦 Stay ahead of the pack with gravity-powered pure water on demand!

## Quick Answers

- **What is this?** Waterdrop Gravity Water Filter Straw, Camping Water Filter, 0.1 Micron | Survival Water Purifier for Hiking, Backpacking & Emergency Preparedness, Multi-Stage Filter with 1.5 Gallon Bag, 2 Pack by waterdrop
- **How much does it cost?** ¥22384 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/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

- • **Versatile & Ready:** Connects seamlessly to water bags or bottles, perfect for hiking, camping, or emergency kits.
- • **Fast Flow, No Fuss:** Enjoy up to 700 ml/min flow rate—quench your thirst quickly without waiting around.
- • **Ultra-Pure Hydration:** Advanced 5-stage filtration removes chlorine, sediment, and odors for crisp, clean water anywhere.
- • **Built to Last & Reuse:** Filter up to 1,400 gallons with easy backwash cleaning to keep your straw fresh and eco-friendly.
- • **Hydrate the Whole Crew:** Generous 1.5-gallon gravity bag holds enough water to keep you fueled all day outdoors.

## Overview

The Waterdrop Gravity Water Filter Straw features a premium 0.1 micron hollow fiber ultrafiltration membrane delivering 5-stage filtration that removes harmful contaminants and improves taste. Paired with a 1.5-gallon gravity-fed water bag, it provides up to 700 ml/min flow rate and a lifespan of 1,400 gallons. Designed for outdoor enthusiasts and emergency preparedness, it’s reusable with a backwash function and compatible with standard water bottles for versatile hydration anywhere.

## Description

Waterdrop Gravity Water Filter Straw, Camping Water Filter, 0.1 Micron | Survival Water Purifier for Hiking, Backpacking & Emergency Preparedness, Multi-Stage Filter with 1.5 Gallon Bag, 2 Pack: desertcart.com: Industrial & Scientific

## 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 | #915 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #6 in Camping & Hiking Water Filters |
| Brand Name | Waterdrop |
| Capacity | 1.5 gallons |
| Container Type | Bag |
| Customer Reviews | 4.6 4.6 out of 5 stars (4,061) |
| 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 Type | Hollow Fiber Ultrafiltration Membrane |
| Maximum Flow Rate | 700 milliliters_per_minute |
| Model Name | WD-FSBUL |
| Model Number | WD-FSBUL |
| Number of Items | 2 |
| Number of Packs | 2 |
| Other Special Features of the Product | Gravity Water Filter Straw, Water Purifier Survival |
| Part Number | WD-FSBUL |
| Power Source | Non Electric |
| Purification Method | Hollow Fiber Ultrafiltration Membrane |
| Supported Water TDS Level Maximum (PPM) | 500 |
| Unit Count | 2 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 | Survival Water Purifier for Hiking, Backpacking & Emergency Preparedness, Multi-Stage Filter with 1.5 Gallon Bag, 2 Pack - Image 1](https://m.media-amazon.com/images/I/61-bojP1RaL.jpg)

## Available Options

This product comes in different **Color, 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

## Frequently Bought Together

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- Waterdrop Gravity Water Filter Straw, Camping Water Filtration System, Water Purifier Survival for Travel, Backpacking and Emergency Preparedness, 1.5 gal Bag, 0.1 Micron, 5 Stage Filtration, Blue
- 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 Japan*
*Store origin: JP*
*Last updated: 2026-09-06*