Best Deal Alert! You can now buy DEDEPU D20 0.5L Mini Scuba Tank with Hand Pump & Adapter from dedepudive.com for a very good price. Hurry up, limited time offer!

Meet DEDEPU D20 0.5L Mini Scuba Tank kit
Dedepu surprised me and sent me a complete diving kit, which includes: D20 0.5 Liter Mini Scuba Tank, Integrated breathing Valve with Silicone mouthpiece, Diving Scuba Tank storage Bag, HD Diving Goggles, Elastically Missed rope, Manual Hand Pump with oil-water separator, Scuba Tank Refill Air Conduction Adapter, tool wrench and other accesories. Overall, this is a solid and complete kit for beginners and casual divers looking for portability and ease of use.
DEDEPU sent me their complete diving kit, and I’m genuinely impressed with the quality and attention to detail. The centerpiece is the DEDEPU D20 0.5L Mini Scuba Tank, compact yet reliable for short underwater adventures. Paired with the integrated breathing valve and silicone mouthpiece, it offers a comfortable and steady airflow. The kit also includes a manual hand pump with an oil-water separator, a scuba tank refill air conduction adapter, and a tool wrench – everything you need for easy setup and maintenance. The HD diving goggles provide excellent visibility, while the elastic missed rope and dedicated storage bag make transport and safety a breeze. Overall, this is a solid and complete kit for beginners and casual divers looking for portability and ease of use.
The DEDEPU 0.5L Mini Scuba Tank packs impressive performance into a lightweight, travel-friendly design. Built from 6061 aerospace-grade aluminum, it’s incredibly durable, corrosion-resistant, and a third the weight of steel—ideal for beach dives, travel, and emergency backups. With around 10 minutes of air (depending on depth and breathing rate), it’s perfect as a professional deep diving backup or for situations like emergency escapes, boat maintenance, or swimming practice. It meets the EN250:2014 breathing air standard, and has passed 200+ third-party rapid charging/discharging tests, ensuring reliability when it matters most. Equipped with a triple filtration system, it keeps your air clean by blocking dust and particles, while the high fatigue resistance ensures long-term safety through repeated use. Whether you’re diving, training, or just staying prepared, this mini tank delivers dependable air when you need it most.
The Dedepu Integrated Breathing Valve is engineered for a smooth and reliable breathing experience underwater. Its constant pressure head ensures a steady air output, while the top pressure relief valve quickly releases excess pressure, keeping your dive safe and comfortable. Featuring an upgrade 3-layer filtration system with a high-density filter mesh, it effectively blocks impurities, and the silicone mouthpiece offers a soft, secure fit for prolonged use. The night glow pressure gauge remains visible even in low-light conditions, and the valve’s anti-leak design adds extra confidence on every dive. Perfect for divers who demand performance and safety, this valve delivers consistent airflow with every breath.
The Dedepu HD Diving Goggles offer a premium underwater experience with a sleek unibody design and a 3D fit that seals comfortably to your face, keeping water out even during deeper dives. The HD tempered glass lens provides crystal-clear vision and is built to withstand high water pressure, making it ideal for serious divers. A wide view lets you take in more of the underwater world, while the antifog coating ensures uninterrupted visibility. The heightened nose cover adds extra comfort and pressure relief, and the quick-adjustment buckle makes it easy to get the perfect fit on the fly. The adjustable mirror strap stays secure and adds to the overall ergonomic feel. Whether you’re snorkeling or diving, the Dedepu HD Diving Goggles deliver clarity, comfort, and confidence with every plunge.
The Dedepu Elastically Missed Rope is a must-have safety accessory for divers, designed to keep your scuba tank securely in place during every dive. Featuring a durable spring coiled lanyard, it offers flexibility without tangling, allowing for smooth underwater movement. The nylon loop with adjustable buckle ensures a snug fit, while the hard plastic gate clip provides a reliable connection to your gear. The nylon Velcro bracelet adds extra security, making setup quick and easy. Lightweight yet strong, this lanyard helps prevent accidental tank loss, giving you peace of mind as you explore the deep.
The Dedepu Diving Storage Bag is the perfect companion for your 0.5L scuba tank, offering secure and convenient storage while underwater. Made from premium nylon material, it’s both tough and lightweight, designed to withstand the rigors of diving while remaining recyclable and eco-friendly. With an adjustable armband design and removable straps, the bag ensures a customizable fit for any diver. The strap adjustment buckle and generous 107 cm total strap length allow you to carry your tank comfortably and securely. Whether you’re a beginner or a seasoned diver, the Dedepu Storage Bag is a reliable diving mate that keeps your gear protected and always within reach.
The DEDEPU Manual Hand Pump is a rugged, portable solution for refilling your mini scuba tank without electricity—perfect for remote dives, emergency kits, or off-grid adventures. Weighing just 3.5kg, it easily fits into your dive bag and goes wherever you go. With 500–600 pumps, you can fully refill a 0.5L tank, and the built-in luminous pressure gauge ensures real-time monitoring for safe, accurate fills. The oil-water separator keeps the air clean and pure, while the stainless steel body and marine-grade materials provide outstanding durability in harsh environments. Designed with an ergonomic non-slip handle, foldable footrest, and a multi-function base that doubles as a wrench, this pump is all about convenience and control. Whether you’re diving in the wild or prepping for emergencies, the DEDEPU hand pump delivers clean air with confidence.
DEDEPU D20 0.5L Mini Scuba Tank Main Features
– The 150-micron ultra-thick hard anodized layer (equivalent to 3 times the diameter of a human hair) designed for harsh marine environments provides triple professional-grade protection for aluminum alloy cylinders.
– Enhanced corrosion resistance:The coating integrity far exceeds the industry standard and effectively blocks seawater erosion as verified by laboratory accelerated salt spray testing
– Wear-resistant protection:The surface hardness reaches HV500+,which can resist underwater rock impact and equipment friction
– Lifetime protection guarantee:The anode layer is metallurgically combined with the substrate to eliminate the risk of peeling and extend the service life of core components
Dedepu HD Diving Goggles Highlights
Wide view, fit without water
HD Lens
Adjustable mirror strap
3D Fit
Wide Open
Unibody
Antifog
Heightened Nose Cover Design
Quick Adjustment Buckle
Dedepu Elastically Missed rope Highlights
Nylon Loop with Adjustable Buckle
Spring Coiled Lanyard
Hard Plastic Gate Clip
Nylon Velcro bracelet
Dedepu Diving storage Bag Highlights
0.5l Scuba Tank Capacity
Premium Nylon material
Diving Mate
Recyclable material
Strap adjustment buckle
Straps are removable and adjustable
Armband design
Dedepu Integrated breathing Valve Highlights
Smoothly Breathing Experience
Constant pressure head provides smooth breathing
Top pressure relief valve easily release pressure
Night glow pressure gauge remains clear underwater
High-density filter mash prevents impurities from entering
Silicone breathing mouthpiece provide a safe and comfortable breathing
Upgrade 3-layer Filtration
Constant Air Output
Anti water leakage
DEDEPU Manual Hand Pump Main Features
Stainless steel material, self-lubricating,no need to refuel.
Ergonomic non-slip handle, increase friction.
Non-slip footrest, foldable, sturdy and firm,can also be used as a wrench repair tool.
Pressure gauge with luminous function
Oil-water separation, make the air more pure and odorless
Visual Barometer, real time monitoring, not afraid of overdose
The base can be also use as a service tool wrench
made with marine-grade materials. Rinse after saltwater exposure. Ideal for remote locations.
it can also be used to inflate basketballs, bicycle tires, and many other scenarios.
Folds to 14″×4″×3″, weighs 2.2 lbs. TSA-compliant when clean. Fits in standard luggage.
Newly Upgraded, Four-tube
How to Use the DEDEPU Manual Hand Pump – Step-by-Step Guide
– Install the Base. Securely attach the base of the hand pump to ensure stability during use.
– Connect the Pump to the Scuba Tank. Use the high-pressure hose to connect the air pump to the tank’s intake valve. Ensure all connections are tight and secure.
– Close the Reducing Valve. Before starting the refill process, make sure the reducing (intake) valve is fully closed to allow proper pressure build-up.
– Begin Pumping. Start pumping manually. Continue until the pressure gauge reads 3000 psi (200 bar). Monitor the pressure in real time using the built-in gauge.
– Release Excess Pressure. Once the desired pressure is reached, open the pressure relief valve slowly to safely release any residual pressure in the hose.
– Disconnect the Scuba Tank. Carefully detach the scuba tank from the pump. Your tank is now pressurized and ready for use.
DEDEPU D20 0.5L Mini Scuba Tank kit best-use scenarios
– Shallow Reef Exploration. Perfect for short underwater explorations around coral reefs, giving you mobility without the bulk of a traditional scuba setup.
– Boat Maintenance & Inspection. Ideal for quick dives under your boat to check the hull, propeller, or retrieve dropped tools – without needing full dive gear.
– Underwater Photography Practice. Test camera angles, lighting, and techniques in shallow water before heading into deeper dives.
– Pool Training & Gear Familiarization. Great for beginners who want to practice breathing techniques and get used to scuba equipment in a controlled environment.
– Emergency Backup Air Supply. Acts as a reliable spare tank in case of air depletion during a primary dive – a smart backup for experienced divers.
– Spearfishing in Shallow Waters. Gives you stealth and mobility for underwater hunting without the noise or size of traditional gear.
– Snorkeling with Extended Dive Time. Level up your snorkeling trips by allowing occasional deeper dips to explore marine life or underwater caves.
– Treasure Hunting & Metal Detecting. Explore shallow wrecks, riverbeds, or coastal waters where lost items might be hiding – compact and easy to carry.
– Vacation & Travel Dives. Fits in your travel bag! Take it on holiday trips for spontaneous underwater exploration without hauling full scuba gear.
– Science & Marine Biology Studies. Ideal for students or hobbyists conducting quick underwater research, observations, or sampling in shallow environments.
Package Contents
1 x DEDEPU D20 0.5L Mini Scuba Tank
1 x Dedepu Integrated Breathing Valve
1 x Dedepu HD Diving Goggles
1 x Dedepu Elastically Missed rope
1 x Dedepu Diving Storage Bag
1 x DEDEPU Manual Hand Pump
1 x Oil-water separation filter
1 x Refill Air Conduction Adapter
1 x Tool wrench
1 x English User Manual
1 x Packaging Box
Unboxing Photo Album with Hi-Rez images here. Read more here about Dedepu products.

About DEDEPU. DEDEPU represents a modern diving niche brand rooted in sustainability, safety innovation, and portability. From their factory-driven control to global certification compliance and refill options, they deliver accessible and reliable mini scuba solutions. Their focus on environmental responsibility and diver experience makes them a standout choice for both casual snorkelers and backup-focused professionals.
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