Breathe underwater in seconds — no scuba certification required.
The GT-500 is a compact 0.5L mini scuba tank built for swimmers, snorkelers, and water sport enthusiasts who want more time beneath the surface. Lightweight, refillable, and ready to go wherever the water takes you.
*For properly trained users only. Actual use time may vary depending on depth, breathing rate, water conditions and user experience. Not a replacement for full scuba training, standard scuba equipment, or proper dive planning.
Compare all mini scuba tanks · How to Choose a Mini Scuba Tank · GT-500 FAQ
Both sets include: a GT-500 0.5L tank with regulator and pressure gauge, an adapter, a storage bag and spare sealing rings.
| 0.5L | 0.5L Premium Set (incl. Hand pump) |
|---|---|
| Tank and the accessories listed above. Hand pump not included. |
Tank and the accessories listed above. Hand pump included. |
| Choose this if you already have a confirmed compatible filling setup or an approved local refill option. | Choose this if you want the hand pump included with your tank. |
Select your color and set on this page to see the current price. An electric compressor is not included in either set.
Optional filling equipment, local refill services and replacement consumables may involve additional costs. Manual pumping requires physical effort; we do not promise a fixed filling time.
Free standard shipping to the United States and supported European destinations. Confirm destination availability at checkout. Free shipping does not mean duties or import taxes are included.
Our general shipping reference is 1–3 business days for processing most in-stock orders and an estimated 3–14 business days after dispatch. Mini Tank orders may need additional processing, carrier or customs time; these are estimates, not guaranteed arrival dates. The dispatch warehouse depends on availability and destination.
Need the tank for a specific trip, or unsure which set fits your equipment? Ask GEAROPT before ordering with your destination, preferred set and filling-equipment model. See our Shipping & Delivery Policy and Mini Tank FAQ.
Choose your air system
Compare capacity, recommended depth and approximate use time.
$209.00 USD
Best for short, controlled shallow-water access.
$369.00 USD
Best for longer shallow-water sessions in controlled conditions.
For properly trained users only. Actual use time varies with depth, breathing rate, water conditions and experience. Mini tanks are not a replacement for full scuba training, standard scuba equipment or proper dive planning.
Made for Quick Shallow-Water Moments
Light, compact and easy to prepare, the GEAROPT 0.5L Mini Tank is designed for quick shallow-water sessions within 3 meters and responsible recreational use.
0.5L
200 BAR / 3000 PSI
Within 3 meters
5–10 min
Clean, dry, breathable compressed air only
Quick shallow-water sessions, surface-level access, recreational water use
Manual hand pump, compatible high-pressure compressor, approved refill adapter
For properly trained users only
1-year limited warranty
Extended Pressure Gauge
Designed with a rotatable extended pressure gauge for more convenient air-level reading.
Valve Structure
An exploded view of the breathing valve head shows the key components behind its compact and integrated design.
35° Reading Angle
The extended pressure gauge sits at a 35° angle to the valve head for easier and more natural pressure reading.
Extended Pressure Gauge
Designed with a rotatable extended pressure gauge for more convenient air-level reading.
Valve Structure
An exploded view of the breathing valve head shows the key components behind its compact and integrated design.
35° Reading Angle
The extended pressure gauge sits at a 35° angle to the valve head for easier and more natural pressure reading.
Safety First
Use Responsibly
The GEAROPT 0.5L Mini Tank is intended for properly trained users and short underwater access in controlled shallow-water conditions within 3 meters.
It is not a replacement for full scuba training, standard scuba equipment or proper dive planning.
Always:
Read the product manual before use.
Use only clean, dry, breathable compressed air.
Do not exceed 200 BAR / 3000 PSI.
Use within 3 meters and within your training ability.
Check all connections before entering the water.
Do not use for deep diving, cave diving, wreck diving or professional underwater work.
Built for Every Water Moment.
Protect What You Explore.
Built for Water. Made to Last.
The ocean gives us freedom, movement and stillness. But even what feels endless is more fragile than it looks.
At GEAROPT, we design water-sports products with long-term use in mind. We focus on durability, responsible maintenance and practical product choices that help reduce unnecessary waste.
From rechargeable audio products to reusable Mini Tank systems and refill accessories, our goal is simple: create gear that supports adventure while showing respect for the water that makes it possible.
