---
product_id: 246879908
title: "Membrane Solutions Water Filter Straw S2, NSF/ANSI 42&372&401 Certified, 4-Stage 0.1 μm Portable Water Purifier with Replaceable Filter, 5,000L Capacity for Camping, Hiking, Survival and Emergency- 1P"
brand: "membrane solutions"
price: "92.87 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Membrane Solutions"
url: https://www.desertcart.tn/products/246879908-membrane-solutions-water-filter-straw-s2-nsf-ansi-42-372
store_origin: TN
region: Tunisia
---

# 500 ml/min optimal flow rate 0.1 μm ultrafiltration membrane Detachable dual-end design Membrane Solutions Water Filter Straw S2, NSF/ANSI 42&372&401 Certified, 4-Stage 0.1 μm Portable Water Purifier with Replaceable Filter, 5,000L Capacity for Camping, Hiking, Survival and Emergency- 1P

**Brand:** membrane solutions
**Price:** 92.87 DT
**Availability:** ✅ In Stock

## Summary

> 💦 Sip Smart, Stay Ahead: The Ultimate On-the-Go Water Purifier

## Quick Answers

- **What is this?** Membrane Solutions Water Filter Straw S2, NSF/ANSI 42&372&401 Certified, 4-Stage 0.1 μm Portable Water Purifier with Replaceable Filter, 5,000L Capacity for Camping, Hiking, Survival and Emergency- 1P by membrane solutions
- **How much does it cost?** 92.87 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/246879908-membrane-solutions-water-filter-straw-s2-nsf-ansi-42-372)

## Best For

- membrane solutions enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Backwash:** Innovative mouthpiece connects to bottles for easy cleaning without extra tools.
- • **Pure Water, Anywhere:** NSF/ANSI 42, 372 & 401 certified for trusted contaminant removal and lead-free safety.
- • **Smart Modular Design:** Unique detachable straw ends let you replace filters on-the-go—save money and hassle.
- • **4-Stage Filtration Power:** Combines hollow fiber membrane, coconut shell GAC, and dual PP fiber filters for 99.99999% odor & chlorine removal.
- • **Adventure-Ready & Versatile:** Lightweight, BPA-free, and compatible with bottles, pouches, or tubing—perfect for solo hikes or group survival.

## Overview

The Membrane Solutions Water Filter Straw S2 is a compact, NSF-certified portable purifier featuring a 4-stage 0.1-micron filtration system that removes 99.99999% of contaminants. With a detachable dual-end design and a 5,000L lifespan, it delivers clean water at 500 ml/min without batteries or chemicals—ideal for camping, hiking, travel, and emergency preparedness.

## Description

desertcart.com : Membrane Solutions Water Filter Straw S2, NSF/ANSI 42&372&401 Certified, 4-Stage 0.1 μm Portable Water Purifier with Replaceable Filter, 5,000L Capacity for Camping, Hiking, Survival and Emergency- 1P : Sports & Outdoors

Review: Great product! - Exactly as described!
Review: Works great! - Used this straw with the membrane solutions filtration system. It works greats for backpacking. Easy set up and filtered water great.

## Features

- ​Survival Gear for Outdoor Water Needs​​ - Certified by ​​NSF ​​and rigorously tested to meet ​​NSF/ANSI 42, 372, 401 standards​​, this portable water filtration system ensures, drinking water in seconds. The NSF certifications validate its ability to remove odor and particles, while maintaining lead-free material. Lightweight and compact, it’s designed for reliability during hiking, camping, global travel, or emergencies—proven by science, trusted by adventurers.
- Innovative Detachable Design: Our S2 water filter straw now is the only detachable straw on the market, both ends can be disassembled. That means it just needs to replace the filter element anytime and anywhere, no need to replace the straw tube shell frequently, which is truly money-saving.
- Superior Backwash Solution: Detachable mouthpiece connects with the common bottle for backwashing, no need for an extra syringe, make easier. Camping water filter does not expire like water purification tablets and does not require batteries, very easy to use.
- 4-Stage Filtration: Our backpacking water filter is made up of 0.1-micron hollow fiber ultrafiltration membrane, coconut shell GAC filter, and double PP fiber filter. Removes 99.99999% of odor, chlorine, make water taste better. What's more, it can maintain the optimal flow rate (500ml/min) while the filter pore size is smaller. Long lifespan to provide at least 5,000 liters water.
- Versatile Filtering Modes: Direct use as a personal water filter; also ideal for connecting with soft water pouch or standard disposable water bottles to get water; even add an extension silicone pipe (Tubing NOT Included) on emergency water filter for more distance to drink; plus, as a replacement gravity filter to provide enough fresh water for family & group.
- Emergency Survival Tool: Match with Food-grade and BPA-Free materials ensure drinking water. An ideal tool for multiple purposes such as backpacking gear, hiking gear, travel accessories, camping & survival equipment and emergency preparedness items. Even the hiking water filter is also suitable as a gift for hikers.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08J7DNY2T |
| Best Sellers Rank | #17,113 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #30 in Camping & Hiking Water Filters |
| Brand | Membrane Solutions |
| Brand Name | Membrane Solutions |
| Capacity | 1320 gallons |
| Container Type | Bottle,Syringe,Tube |
| Customer Reviews | 4.7 out of 5 stars 1,904 Reviews |
| Global Trade Identification Number | 00850071881769 |
| Included Components | Detachable Mouthpiece, Soft Water Pouch |
| Installation Type | Freestanding |
| Item Dimensions L x W x H | 8.66"L x 1.57"W x 1.57"H |
| Item Weight | 3 Ounces |
| Manufacturer | Membrane Solutions |
| Material | Straw |
| Material Type | Straw |
| Maximum Flow Rate | 500 Milliliters Per Minute |
| Model Name | gear |
| Model Number | WS02-1 |
| Other Special Features of the Product | Portable |
| Part Number | Versatile Water Filter Straw |
| Power Source | Non Electric |
| Product Dimensions | 8.66"L x 1.57"W x 1.57"H |
| Purification Method | Activated Carbon, Hollow Fiber Membrane |
| Smart Home Compatibility | Not Smart Home Compatible |
| Special Feature | Portable |
| Supported Water TDS Level Maximum (PPM) | 500 |
| UPC | 850071881769 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Membrane Solutions
- **Capacity:** 1320 Gallons
- **Installation Type:** Freestanding
- **Item Weight:** 3 Ounces
- **Material:** Straw
- **Package Information:** Bottle,Syringe,Tube
- **Power Source:** Non Electric
- **Product Dimensions:** 8.66"L x 1.57"W x 1.57"H
- **Purification Method:** Activated Carbon, Hollow Fiber Membrane
- **Special Feature:** Portable

## Images

![Membrane Solutions Water Filter Straw S2, NSF/ANSI 42&372&401 Certified, 4-Stage 0.1 μm Portable Water Purifier with Replaceable Filter, 5,000L Capacity for Camping, Hiking, Survival and Emergency- 1P - Image 1](https://m.media-amazon.com/images/I/612biKxGNQL.jpg)
![Membrane Solutions Water Filter Straw S2, NSF/ANSI 42&372&401 Certified, 4-Stage 0.1 μm Portable Water Purifier with Replaceable Filter, 5,000L Capacity for Camping, Hiking, Survival and Emergency- 1P - Image 2](https://m.media-amazon.com/images/I/81YJ5f9enzL.jpg)
![Membrane Solutions Water Filter Straw S2, NSF/ANSI 42&372&401 Certified, 4-Stage 0.1 μm Portable Water Purifier with Replaceable Filter, 5,000L Capacity for Camping, Hiking, Survival and Emergency- 1P - Image 3](https://m.media-amazon.com/images/I/81buN1IMd1L.jpg)
![Membrane Solutions Water Filter Straw S2, NSF/ANSI 42&372&401 Certified, 4-Stage 0.1 μm Portable Water Purifier with Replaceable Filter, 5,000L Capacity for Camping, Hiking, Survival and Emergency- 1P - Image 4](https://m.media-amazon.com/images/I/71X89kZN8BL.jpg)
![Membrane Solutions Water Filter Straw S2, NSF/ANSI 42&372&401 Certified, 4-Stage 0.1 μm Portable Water Purifier with Replaceable Filter, 5,000L Capacity for Camping, Hiking, Survival and Emergency- 1P - Image 5](https://m.media-amazon.com/images/I/81McYXzGImL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product!
*by A***M on June 7, 2026*

Exactly as described!

### ⭐⭐⭐⭐⭐ Works great!
*by M***C on May 20, 2026*

Used this straw with the membrane solutions filtration system. It works greats for backpacking. Easy set up and filtered water great.

### ⭐⭐⭐⭐⭐ Great survival tool
*by J***D on March 25, 2026*

Still have these for the apocalypse!

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---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-12*