DEDEPU S3000 0.5L Mini Scuba Tank
The DEDEPU S3000 0.5L mini scuba tank is crafted from 6061 aviation-grade aluminum alloy, weighing just one-third of a steel tank. A 150-micron hard-anodized coating (HV500+ hardness) provides triple protection: resistance to seawater corrosion, impact, and surface abrasion. The built-in balanced regulator delivers a constant 1 MPa airflow, ensuring smooth, steady breathing regardless of the pressure level inside the tank. It holds dual certifications: DOT-CFFC-68 and CE.Meets EN250:2014 breathing air standard,40 meters deep safe backup.Passed 200+ rapid charging and discharging tests by a third-party organization,meeting the basic performance pf NFPA 1986 emergency breathing system.Its modular, quick-release design complies with FAA 49 CFR §175.10 standards, and its dimensions ( Φ40×300mm) fit 99% of aircraft overhead bins (IATA tested). With an actual system weight of 1.5 kg (including the valve and regulator), it is suitable for carry-on travel.
| Capacity | 0.5L/17 cu in |
| Underwater usage time | 5-10 minutes |
| Max working pressure | 200bar/3000psi |
| System weight | 1.5kg(Includes breathing valve) |
| Depth | 3 meters |
| Overrall dimensions | 37*6.5*6.5 cm |
| Material | 6061 aerospace-grade aluminum alloy |
| Surface hardness | HV500+ |
| Rupture disk pressure relief threshold | 4500psi/310bar/31Mpa |
| Surface technology | 150 micron hard-coat anodizing+powder coating+silk screening |
| Breathing valve thread | M18✖️1.5 |
| Valve output | Constant pressure is 0.7-1Mpa |
| Inflation methods | Dive shop/Hand pump(500-600 strokes)/Compressor/8mm adapter(approx. 6 seconds) |
| Certification | DOT-CFFC-68/CE |
| Suitable for | learning to swim,emergency backup,boat maintenance,air gun inflation,kayak safety,snorkeling backup. |
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S3000 0.5L constant-pressure breathing valve
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0.5L Tank
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Diving Anti-fog Glasses
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Missed rope
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S3000 Diving storage Bag
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Packing Box
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6061 Aviation Aluminum
Crafted from 6061 aerospace aluminum,our tank is ultra-light-just a third the weight of steel-making it perfect for travel,beach dives,and spare air for deep diving.Withstands harsh saltwater environments,ensuring longevity and reliability
Safer Than Steel
The 150-micron hard anodized layer provides triple protection, blocking seawater erosion, resisting impact and friction with a hardness of HV500+, and bonding seamlessly with the cylinder to prevent peeling and extend service life.
Backup Air Supply
Never hurts to have a little backup breath, right? This 0.5L tank’s got your back when your main air’s calling it a day—compact, reliable, and cooler than your buddy’s safety sausage.
Stable Airflow
With DEDEPU’s balanced regulator, you get steady 1MPa airflow—even under 200MPa tank pressure. That means no surprises, just smooth, easy breaths underwater.
Auto Pressure Release
Auto vents at 4500–5000psi to prevent overfill—no babysitting needed, even on hot beach days.
Usage Scenario
Pool Training
Learning to stay underwater takes time.With the S3000 mini scuba tank, beginners can relax, practice breath control, and build confidence without rushing back up every few seconds.
Kayak Safety
Kayaks flip. Lines get tangled. Things happen fast.The S3000 scuba tank isn’t for exploring—it’s for staying calm when you’re briefly stuck underwater and need air to sort things out.
Snorkeling Backup
Most people don’t plan to stay underwater long.This is just there in case you do.When you want one more look, or need a calm breath before surfacing, the S3000 gives you that moment without panic.
AVATION-GRADE PORTABLE DESIGN,SEAMLESS JOURNEY
Actually measured 3.5kg integrated system (including regulator/valve),
compliant portability achieved through three core innovations;
Simplified structure patent
Modular quick release of breathing valve and regulator (compliant with FAA 49 CFR §175.10)
Airline compatible size
Φ40×300mm cylindrical design, IATA tested to fit 99% of cabin luggage racks
Worry-free inspection certificate
TSA security inspection guide included (including DOT-CFFC-68 certification number for on-site verification)
Four Easy Ways to Refill
The DEDEPU 0.5L mini scuba tank offers four convenient refilling methods, ensuring you’re always ready for your next dive or emergency use.
Dive Shop Refill
Refill at certified dive shops.Our DOT-approved cylinder can be safely filled by professionals, typically costing just $5–10 per refill.
Hand Pump
A portable manual high-pressure pump lets you refill anywhere with no electricity.Requires about 500-600 pumps.
Electric Compressor
Refill your tank quickly with the DEDEPU high-pressure electric compressor. It automatically fills to 3000 PSI in about 12 minutes for fast, effortless operation.
Refill Adapter
Use an 8mm scuba refill adapter to transfer air from a larger scuba tank, and the process only takes about 6 seconds.
Operation sequence
Connect
Screw the regulator into the tank valve. Tighten by hand, then apply 1/4 turn of the wrench. Check that the O-ring is properly seated.
Inflate
Go to any certified dive shop and inflate to 200 bar using the DIN/YOKE connector. Alternatively, use a DEDEPU manual pump (approximately 500-600 strokes), an electric compressor (set to automatically stop at 200 bar), or an 8mm adapter to transfer from a full-size cylinder (approximately 6 seconds).
Pre-dive check
Check the pressure gauge reading. Listen for leaks. Take 2-3 breaths on shore to confirm airflow.
Post-use maintenance
Rinse the cylinder and valve with fresh water. Store completely dry. For long-term storage, inflate to 5 MPa and keep dry. Perform a hydrostatic test every 2 years.
SAFETY NOTICE
BEST PRACTICESRegardless of the filling method:
• Do not exceed 4500 psi,built-in rupture disc provides overpressure protection.
• Keep the cylinder absolutely dry,if seawater enters, immediately flush with fresh water, drain, and completely dry before refilling.
• Maintain an internal pressure of 5 MPa for long-term storage,prevent external moisture from entering the cylinder.
• Have a hydrostatic test conducted by a qualified diving service every 2 years.
• Completely depressurize before air transport,modularly disassemble valves and regulators.
• Do not leave the cylinder in a car exposed to direct sunlight,high temperatures cause a rapid increase in internal pressure.
Our Commitment to You
Hassle-Free Returns or Replacements
If your product has a manufacturing defect, you can request a free return or replacement within 30 days of delivery. We want you to shop with complete confidence.
One-Year Warranty for Peace of Mind
Every DEDEPU product is backed by a one-year warranty covering defects in materials and workmanship under normal use. If something goes wrong, we'll repair or replace it—because standing behind our products is part of standing behind our customers.
Understanding Your Dive Performance
Your underwater time depends on several factors, including lung capacity, diving depth, breathing rate, and activity level. If you're getting less dive time than expected, our PADI-certified instructors are here to help you improve your breathing techniques and get the most from every dive.
Certified for Your Confidence
Every DEDEPU scuba tank is CE and DOT certified, meeting internationally recognized safety standards. These certifications make refills straightforward at most certified dive shops. For the smoothest experience, simply bring your scuba certification card when refilling.
Eco-Friendly Commitment
The ocean gives us endless adventures, and we believe it's our responsibility to give something back. Every DEDEPU product is made with environmentally conscious materials, and for every order placed, we donate $1 to the United Nations Environment Programme (UNEP) – Marine and Coastal Programme to help protect marine ecosystems. Every dive you take contributes to a healthier ocean for future generations.
Always Here for You
Questions, support, or product advice—we're always happy to help. Contact us at sales@dedepudive.com, and our team will get back to you as quickly as possible.
More Than Equipment, A Mission
DEDEPU is more than a diving equipment brand. We believe every dive should be safer, more accessible, and more meaningful. From first-time explorers to experienced divers, our mission is to provide reliable equipment while helping protect the oceans that inspire every adventure. When you choose DEDEPU, you're joining a community that values safety, exploration, and a lasting commitment to the underwater world.
FAQs
How long can I dive with the S3000 scuba tank?
Up to 10 minutes at a depth of 5 meters, around 5 minutes at 10 m (33 ft), and about 3 minutes at 20 m (66 ft). As depth increases, higher water pressure causes air to be consumed more quickly. Actual dive time will vary based on lung capacity, breathing rate, and physical activity. Always keep one-third of your air supply in reserve for a safe ascent.
Is the S3000 diving tank suitable for beginners?
Yes—but basic dive training is strongly recommended. Pool training or shallow-water practice typically does not require certification. However, for open-water diving, a PADI Open Water Diver certification or an equivalent qualification is highly recommended. You should be familiar with proper breathing techniques, buoyancy control, and emergency ascent procedures before use.
How do I refill my S3000 dive tank?
There are four ways to refill the cylinder: at a certified dive shop air station (typically $5–10 per fill), with the DEDEPU manual pump (approximately 500–600 strokes), using the DEDEPU 12V electric compressor (automatically fills to 200 bar in about 12 minutes), or by transferring air from a scuba cylinder with an 8 mm refill adapter (about 6 seconds). Never exceed the maximum working pressure of 3000 PSI.
Can I bring the S3000 on airplanes?
Yes. Before flying, completely depressurize the cylinder to 0 bar, remove the regulator from the valve, and carry the DOT-CFFC-68 certification document along with the TSA screening guide for inspection. The cylinder (Φ40 × 300 mm) fits in most carry-on luggage and overhead bins. We also recommend informing airline staff at check-in.
What maintenance does the S3000 require?
Rinse with fresh water after every use in saltwater and allow the cylinder to dry completely. Inspect the O-rings regularly and replace them every 20–30 uses (typically under $1 each). Store the cylinder in a cool, dry place with an internal pressure of 5 MPa if it will not be used for an extended period. Have it hydrostatically tested every two years at a certified dive service center (typically $25–40), and schedule professional maintenance annually.
What safety features does the S3000 include?
Key safety features include a 4500–5000 PSI burst disc for overpressure protection, a 150-micron hard-anodized coating (HV500+) for enhanced corrosion and wear resistance, lightweight 6061 aerospace-grade aluminum alloy, a balanced regulator with a constant 1 MPa output for smooth breathing, a standard DIN/YOKE connection compatible with most BCD systems, and dual DOT-CFFC-68 and CE certification.