---
product_id: 48127911
title: "Sandbag Alternative (Pack of 2)"
brand: "hydrosnake"
price: "¥23472"
currency: JPY
in_stock: true
reviews_count: 8
category: "Hydro Snake"
url: https://www.desertcart.jp/products/48127911-sandbag-alternative-pack-of-2
store_origin: JP
region: Japan
---

# Absorbs up to 20L water Ready to deploy in minutes Built-in handles for easy handling Sandbag Alternative (Pack of 2)

**Brand:** hydrosnake
**Price:** ¥23472
**Availability:** ✅ In Stock

## Summary

> 💦 Stay dry, stay ready — flood protection that’s smarter, faster, greener.

## Quick Answers

- **What is this?** Sandbag Alternative (Pack of 2) by hydrosnake
- **How much does it cost?** ¥23472 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/48127911-sandbag-alternative-pack-of-2)

## Best For

- hydrosnake enthusiasts

## Why This Product

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

## Key Features

- • **Eco-Friendly & Safe:** Made from harmless pulp and super absorbent polymers that biodegrade naturally.
- • **Stackable Protection:** Modular design lets you build taller barriers tailored to your flood risk.
- • **Lightweight & Portable:** Weighs just 1.5 kg with ergonomic handles for quick, hassle-free placement.
- • **Flood Defense, Simplified:** Instantly expands to form a 4-5 inch water barrier—no sand, no mess.
- • **Long-Term Storage, Emergency Ready:** Store dry for 5+ years and deploy at a moment’s notice.

## Overview

The HydroSack Sandbag Alternative (Pack of 2) is a cutting-edge flood barrier solution that absorbs up to 20 liters of water each, expanding within minutes to create an effective 4-5 inch high barrier. Designed for easy handling with built-in handles and a unique 3-section structure to prevent shifting, it offers long-term dry storage for over 5 years and eco-friendly disposal. Ideal for quick emergency response, it’s lightweight, stackable, and safe for the environment, making it a modern upgrade to traditional sandbags.

## Description

Product Description The HydroSack is the most important development in emergency flood protection since the invention of the sandbag. Before use the HydroSack can be safely stored in a dry location for 5+ years. In the event of a flood simply place the HydroSack in water - or spray with a hose. They will quickly expand and will absorb up to 20 litres of liquid, and thereafter will act as a barrier to stop excess waters surging into your home or premises - it will retain it's weight for over 3 months. Since the HydroSack only contains pulp and Super Absorbent Polymer, both are harmless to the environment, and after slitting the sack, they can be dispersed into the soil without any harmful effects. The HydroSack has built-in handles for easy movement, especially useful in emergency conditions. The unique 3 section structure of the HydroSack allows a controlled spread which prevents the contents from moving from side to side. A unique product of Gravitas International Ltd. Safety Warning Warning: when using outdoors, pay attention to the risk of flooding. Dry completely before use and do not store near open flames. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Box Contains 2 x HydroSnakes See more

Review: Brilliant product - Great product! When soaked it swells to create a decent 4-5" barrier. Can be stacked to make a taller barrier but this has worked well for my needs. Also the really bright colour makes it easy to see so less of a trip hazard when used across doorways. Easy to store spares for when you need them.
Review: Good but expensive. - Fair size and soak up water. Use as a backup behind another barrier Might be too light and small for more exposed areas.

## Features

- Ideal alternative to sand bags
- Effective barrier to floods
- Easy to handle
- Each absorbing up to 20L of water
- Ready to use in minutes

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00AMEB6HA |
| Best Sellers Rank | 29,004 in DIY & Tools ( See Top 100 in DIY & Tools ) 11 in Emergency Kits & Supplies |
| Customer Reviews | 4.4 4.4 out of 5 stars (653) |
| Date First Available | 1 Jan. 2009 |
| Item display height | 2 centimetres |
| Item display length | 145 centimetres |
| Item display weight | 1.5 Kilograms |
| Item display width | 25 centimetres |
| Item model number | HSNK |
| Item volume | 20 Litres |
| Manufacturer | Gravitas International Ltd |
| Material type | Mixed Materials |
| Part number | HSNK |
| Product Dimensions | 145 x 25 x 2 cm; 1.22 kg |

## Product Details

- **Brand:** HydroSnake
- **Global Trade Identification Number:** 05060286080016
- **Item weight:** 1.23 kg
- **Style:** Modern

## Images

![Sandbag Alternative (Pack of 2) - Image 1](https://m.media-amazon.com/images/I/71y9YII4YVL.jpg)

## Questions & Answers

**Q: how long are they**
A: 145cm

**Q: Could they be used to put inside my garage door to stop wind and rain blowing underneath and stop the wind whistling. If so how many would I need.**
A: Each snake is approximately 3ft long and yes it will do the job you want as they are quite pliable , I don't know how wide a garage is im afraid but im sure you can work it out off this, the hydrosnake comes in a pack of 2 so you would have approximately 6ft coverage . They are an amazing product , they can soak up an unbelievable amount of water .

**Q: How long is the shelf life unused?**
A: Not really sure.  I ordered 2/3 sets and used one last winter and one in the summer.  I have kept the last set unopened and thankfully unused so far but can see no reason for it not to work if and when required.  It is an excellent product.

**Q: Major flood after the rain so bought these. do i have to soak them first or would the rain do the job? can i reuse them? if so how?**
A: They recommend wetting the “snakes” a bit before first use but we found the rainwater trying to get into our garage did that for us. They can be reused until they go hard. They get heavier as they absorb the water so we left ours in the sun to dry off a bit. The inside material  can be spread on earth in the garden which was one of the reasons we got them since easy to dispose of.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Brilliant product
*by S***E on 22 August 2025*

Great product! When soaked it swells to create a decent 4-5" barrier. Can be stacked to make a taller barrier but this has worked well for my needs. Also the really bright colour makes it easy to see so less of a trip hazard when used across doorways. Easy to store spares for when you need them.

### ⭐⭐⭐⭐ Good but expensive.
*by D***N on 5 September 2022*

Fair size and soak up water. Use as a backup behind another barrier Might be too light and small for more exposed areas.

### ⭐⭐⭐⭐⭐ Reliable
*by A***R on 21 September 2023*

I use this to stop water entering my garage (it’s on a slope). I replaced old ones yesterday morning as they don’t last forever (4 months tops). Last night we had exceptionally heavy rain fall, the worst in years and the hydro snake did the job and kept the garage dry. I’m really happy and just ordered another pack. Sand bags are really hard work to fill and heavy to place and they also fall apart after a while so these are an excellent option (but not cheap).

## Frequently Bought Together

- HydroSnake Sandbag Alternative (Pack of 2)
- Quick Dam QD610-1 Water-Activated Flood Barrier-1 Pack, Black, 10-ft
- 2Pcs of 150CM Water Activated Flood Barriers for Home Door, Reusable Absorbent Prevention for Garage & Basement, Sandless Flood Bags to Absorb, Divert and Block Water (150CM-2PACK)

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**Shop now:** [https://www.desertcart.jp/products/48127911-sandbag-alternative-pack-of-2](https://www.desertcart.jp/products/48127911-sandbag-alternative-pack-of-2)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-21*