OX500
0.5 L. Held in the mouth, no harness.
Up to
8 min
underwater
From€199.99
See the OX500
Refillable mini scuba tank
A few minutes of air to check under the hull or free a fouled anchor.
- 200 bar working pressure
- You refill it yourself
- Shipping to Europe, the United States and Canada
Four tanks, three sizes
From 0.5 to 2.3 litres of air. They differ in volume and in how you wear them.
OX500Plus
0.5 L. In the mouth or on your back, hands free.
Up to
8 min
underwater
From€289.99
See the OX500Plus
OX1000
1 L. On your back, for a longer stay.
About
15 min
underwater
From€299.99
See the OX1000
OX2000
2.3 L. On the back, for longer jobs.
Up to
25 min
underwater
From€389.99
See the OX2000Air time depends on your breathing, the depth and the effort.
What it is for
Under the hull
Propeller, anode, hull: a quick check with both hands free.
OX500Plus packs
At anchor
A fouled anchor or something overboard: 1 L buys you more time on the bottom.
OX1000 packs
Snorkelling
Snorkel at the surface, tank when you go down, with the OXAIR mask.
Packs with OXAIR mask
In the pool
A calm place to learn to breathe underwater. 0.5 L is enough.
OX500 packsRefilling it yourself
Manual pump
- Time
- About 20 minutes for 0.5 L
- Power
- No power socket needed
- Tanks
- OX500 and OX500Plus. Not compatible with the OX1000.
On its own or in a pack
- Manual pump€159.99
- OX500 Pack + Manual pump€359.99
- OX500Plus Pack + Manual pump€449.99
12 V / 220 V mini compressor
- Time
- About 12 minutes for 0.5 L, 20 minutes for 1 L
- Power
- A 12 V or 220 V socket
- Tanks
- All three models
On its own or in a pack
- 12 V / 220 V mini compressorLast units€549.99
- OX500 Pack + Mini compressor€749.99
- OX500Plus Pack + Mini compressor€839.99
- OX1000 Pack + Mini compressor€849.99
Already own a dive cylinder? The DIN or yoke transfer station fills the tank in about a minute. It is not in the shop: write to us.
Read the refill guideThe OXSEA film
Shot in 2023, on deck and under the hull
Preparation, refilling, diving around the boat: OXSEA mini tanks filmed in real conditions.
Customer reviews
Feedback from boat owners, families and curious first-timers, published with their first name and photo.
Raph
Great on my boat
Lightweight, easy-to-carry mini-bottle. Great for my boat!!
Alban
The hybrid mask is great.
Already used and always satisfied. Perfect for snorkeling and short dives from the surface to explore or follow a fish. The automatic switch from the OXAIR mask’s snorkel to the tank’s air is amazing.
Maeva
Works perfectly
I tested it in our pool, and it works. I filled it with my compressor. You need to get used to the breathing, but it’s a quick learning curve. Runtime is 5 to 8 minutes, depending on the person. Can’t wait to try it in Hawaii next month.
Every step on video
Assembling the tank, adjusting the airflow, changing a filter, replacing a seal: short tutorials, by product, in your language.
- OX5004 videos
- OX500Plus2 videos
- OX10004 videos
- Manual pump3 videos
See it and try it in a shop
Chandleries and dive shops stock OXSEA in France, Spain and beyond.
They stock OXSEA
Read this before you buy
Our tanks are used without diver training, close to the surface. Three rules still apply every time.
Read the safety guide- Breathe continuously
- Never hold your breath while ascending
- Ascend slowly
Our guides
All guides- Mini scuba tank comparison: OX500, OX500Plus or OX1000, which one should you get?
5 min read
- Mini scuba tank safety: where the danger lies and how to avoid it
9 min read
- Mini scuba tank for boats: getting equipped to work under the hull
9 min read
- How to refill a mini scuba tank: time, budget and precautions
8 min read
- Mini scuba tank air time: how many minutes will you really get?
8 min read
- How to choose a mini scuba tank: the questions to settle before you buy
9 min read
What we get asked most
How long can I stay underwater?
Up to 8 minutes with a 0.5 L tank (OX500 and OX500Plus) and about 15 minutes with the 1 L OX1000. The real figure depends on your breathing, the depth and the effort.
How do I refill an OXSEA mini tank?
Three ways: with the manual pump (about 20 minutes for 0.5 L, not compatible with the OX1000), with the 12 V / 220 V mini compressor (about 12 minutes for 0.5 L, 20 minutes for 1 L) or from a dive cylinder with the DIN or yoke transfer station, in about a minute.
Do I need a diving certificate?
Our tanks are used without diver training, close to the surface. The safety rules still apply: breathe continuously, never hold your breath while ascending, ascend slowly. Our safety guide covers them in detail.
What is the difference between the OX500 and the OX500Plus?
Same 0.5 L volume and same air time. The OX500Plus adds a harness, an external regulator and an external gauge: you wear it on your back, hands free, or in the mouth. It also takes the OXAIR mask.
Can I fly with the tank?
Yes: tank completely empty, head open or removed, and declared at check-in. Check your airline's policy before you leave.
Where do you ship?
Across the European Union, to the United Kingdom, Switzerland, Norway, Monaco, the United States and Canada. Costs and delivery times are shown at checkout for your destination. 30-day returns, 24-month warranty.
Find your pack
Pick your tank and your refill system, and receive a pack that is ready to use.