---
product_id: 240637345
title: "SMACO Mini Scuba Tank 1L Small Diving Tank for Underwater Breathing Portable Lung Air Tank Diving Oxygen Cylinder Kit for Emergency Rescue Boat Cleaning Backup Air Source Pony Bottle S400"
brand: "smaco"
price: "¥117616"
currency: JPY
in_stock: true
reviews_count: 5
url: https://www.desertcart.jp/products/240637345-smaco-mini-scuba-tank-1l-small-diving-tank-for-underwater
store_origin: JP
region: Japan
---

# 20 mins dive time 4 inflation methods Plane-friendly design SMACO Mini Scuba Tank 1L Small Diving Tank for Underwater Breathing Portable Lung Air Tank Diving Oxygen Cylinder Kit for Emergency Rescue Boat Cleaning Backup Air Source Pony Bottle S400

**Brand:** smaco
**Price:** ¥117616
**Availability:** ✅ In Stock

## Summary

> 🌊 Dive Deeper, Travel Lighter — Your Ultimate Mini Scuba Sidekick

## Quick Answers

- **What is this?** SMACO Mini Scuba Tank 1L Small Diving Tank for Underwater Breathing Portable Lung Air Tank Diving Oxygen Cylinder Kit for Emergency Rescue Boat Cleaning Backup Air Source Pony Bottle S400 by smaco
- **How much does it cost?** ¥117616 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/240637345-smaco-mini-scuba-tank-1l-small-diving-tank-for-underwater)

## Best For

- smaco enthusiasts

## Why This Product

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

## Key Features

- • **All-in-One Dive Kit:** Includes pony bottle, harness, and hand pump for instant readiness and emergency backup
- • **Extended Underwater Freedom:** 1L capacity delivers up to 20 minutes of reliable dive time—perfect for quick explorations
- • **Travel-Ready Dive Companion:** Disassembles for hassle-free plane travel so you can dive anywhere, anytime
- • **Versatile Refilling Options:** Fill your tank your way—local shops, quick adapter, compressor, or manual pump
- • **Breathe Easy, Dive Confident:** Explosion-proof tech + constant pressure exhaust for smooth, safe air flow

## Overview

The SMACO Mini Scuba Tank S400 is a compact 1L diving oxygen cylinder engineered for up to 20 minutes of underwater breathing. Featuring explosion-proof safety, a double-layer filtration system, and four versatile refill methods, it’s designed for portability—including plane travel—and serves as an ideal backup air source for divers and emergency rescue scenarios.

## Description

Full description not available

## Features

- USING IT MORE SAFER: SMACO S400 pony bottle adopts constant pressure exhaust and explosion-proof device.The high-pressure gas in the bottle is decompressed and output through the decompression chamber,making breathing smoother and safer to use
- UP TO 20 MINS DIVE TIME: SMACO S400 has a capacity of 1 L and can provide up to 20 mins of diving time.At the same time, the mini scuba tank has double-layer filtration device, which effectively prevents the entry of dust and impurities, making the inhaled gas cleaner
- BOARD THE PLANE: After you disassemble the small scuba tank, you can take it on the plane and go diving anywhere. It has safe depth limit of about 33 ft. It can be used as a backup air source for deep diving within 100 ft. Mini diving cylinder is suitable for underwater exploration, boat cleaning, emergency rescue, backup air source, etc
- FOUR WAYS TO INFLATE: Local Dive Shop. SMACO lung air tank meets DOT standards and can be filled at local Dive Shops. SMACO 8mm refill adapter. Connect to a standard scuba tank to refill your SMACO S400 in about 8 seconds.SMACO Air Compressor. It allows you to fill your 1 L diving tank by yourself without any effort, in about 26 minutes.SMACO high pressure hand pump.It's the backup inflation method. You need supply the man-power in about 50 minutes
- WHAT YOU WILL GET:Perfect diving packages,include a 1 L pony bottle, a harness and a hand pump

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Package Dimensions L x W x H | 13.78 x 9.84 x 9.84 inches |
| Package Weight | 3 Kilograms |
| Brand Name | SMACO |
| Manufacturer | SEBiger |
| Part Number | S400 |
| Style | E-green |

## Images

![SMACO Mini Scuba Tank 1L Small Diving Tank for Underwater Breathing Portable Lung Air Tank Diving Oxygen Cylinder Kit for Emergency Rescue Boat Cleaning Backup Air Source Pony Bottle S400 - Image 1](https://m.media-amazon.com/images/I/61w8GZhNGpL.jpg)

## Available Options

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

## Questions & Answers

**Q: How can you see how much bar/psi you have left if the gauge is on your back?**
A: For the S400 series, we recommend that you carry the bag on your chest to check the pressure gauge. If you don’t like this, I suggest you buy the latest S400 PRO, this one uses an extended pressure gauge and a waist pack, you can check it through the extended pressure gauge.

**Q: Is this a disposable mini scuba tank?**
A: no we bought this one on purpose so we can refill it

**Q: What about buoyancy? how can you control your buoyancy without bcd? will the tank drag you down?**
A: I deleted two answers... 

A filled tank (200 bar or 3,000 psi) - may it be S700, S400 1.0L or S300 - will go down to the bottom. It has a negative buoyancy.

An empty tank won't ascend from the bottom, but it will take an upside down position, its buoyancy is much less negative. 

Attached to you it "might" affect your buoyancy, but that depends on your own buoyancy. Buoyancy control depends on your buoyancy, and that from your weight, bodyfat ratio, gear weight, salinity etc.

**Q: Are these air tanks allow on planes**
A: Yes, if you can show that the first stage regulator is unscrewed from the tank.   Airlines are concerned with pressurized tanks.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Scuba Tank.
*by J***A on May 8, 2025*

I have to say this is one of the best investments I’ve made for underwater exploration. From the moment it arrived, I was impressed by the compact design, professional build quality, and thoughtful engineering.The S400 provides up to 20 minutes of dive time, which is perfect for short underwater adventures, emergency backup, or even quick maintenance dives. It’s lightweight, easy to carry, and surprisingly simple to use. I really appreciate the constant pressure exhaust system it makes breathing smooth and consistent, and the explosion-proof design adds a reassuring layer of safety.The double-layer filtration system is another standout feature. The air feels clean and fresh, which speaks to the quality of this product. I’ve used it for shallow dives around 30 feet, and it performs flawlessly. Also, the fact that it can be disassembled and taken on a plane makes it perfect for travel and spontaneous dive trips.Filling options are super versatile. I’ve refilled it using a standard scuba tank and the 8mm adapter it only took seconds! Knowing I can also use a compressor or hand pump if needed gives me peace of mind.The harness included is comfortable and secure, and the whole setup feels solid and well-made. I wouldn’t hesitate to recommend the SMACO S400 to anyone who wants a reliable, portable diving solution. Whether for fun, emergency, or utility this tank delivers.

### ⭐⭐⭐⭐⭐ Game-Changer for Underwater Adventures – A Must-Have!
*by A***A on April 26, 2025*

The SMACO Mini Scuba Tank (S400) is absolutely incredible! As someone who loves underwater exploration but doesn’t always want to deal with bulky scuba gear, this 1L tank has been a total game-changer.First off, the build quality is outstanding — it feels solid, durable, and very well-designed. It’s easy to use, lightweight, and super portable, making it perfect for quick dives, underwater photography, emergency backups, or just some spontaneous fun exploring reefs and coves.The 20-minute dive time (depending on depth and breathing rate) is more than enough for short dives and underwater tasks. I also love how easy it is to refill with a hand pump, compressor, or larger tank, and the detailed instructions made the whole setup process simple and stress-free.The emergency rescue potential of having this as a pony bottle gives me huge peace of mind whenever I’m doing deeper dives. It’s a serious safety backup that’s compact enough not to get in the way.SMACO really thought of everything with this kit. It’s reliable, lightweight, and surprisingly comfortable to carry underwater. I’ve already recommended it to several of my diving friends.If you’re into diving, snorkeling, or even just want an emergency air supply for boats, this is an incredible investment. Worth every penny!

### ⭐⭐⭐⭐⭐ Tank
*by S***U on April 30, 2025*

It has a beautiful and very stylish design

## Frequently Bought Together

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-28*