TUXING 4500Psi Carbon Fiber Scuba Tank 6.8L - Lightweight High

In this review the TUXING 6.8L carbon fiber scuba tank is evaluated for divers and outdoor users who need a high-pressure, lightweight cylinder for repeated fills. The bottom line: this cylinder stands out for its combination of 4500psi working pressure and a low weight around 3.9 kg, making it a practical choice for deep diving, snorkeling support, PCP air rifle use, and water sports where portability matters. The review focuses on build quality, safety credentials, and daily usability based strictly on the product specifications and reported customer feedback.

Key Features

• High working pressure: 300 bar (4500psi) working pressure lets the cylinder store more gas in the same internal volume, extending time between fills.
• Lightweight construction: Full-wrapped carbon fiber over an AL6061 aluminum alloy liner reduces weight by about 70% compared with steel cylinders, easing transport and handling.
• Durable finish and structure: Epoxy coated external surface with carbon and glass fiber winding provides good creep, shock and corrosion resistance for long service life.
• Certified safety and testing: CE/EN approved with a 45 MPa hydrostatic test pressure and a 102 MPa minimum burst pressure, reflecting robust safety margins for composite cylinders.
• Service life and inspection: Designed service life of 15 years with a 3-year inspection cycle keeps long-term ownership predictable and economical.

Who It's For

The TUXING 6.8L carbon fiber tank is best for recreational and technical divers who value reduced carry weight and want a cylinder that tolerates high fill pressures for longer dive durations. It also suits people using high-pressure filling systems such as PCP air rifle owners and operators who need a compact portable gas source for fieldwork or training.

Those who should look elsewhere include users constrained by regulatory needs requiring DOT certification, since this model is CE/EN approved (not DOT). Also, if absolute maximum capacity or a steel cylinder's price point is the priority, a traditional steel tank may be preferable.

Pros & Cons

Pros

• Very good strength-to-weight ratio thanks to the AL6061 liner and full carbon fiber wrap.
• High working pressure of 300 bar extends usable gas per fill compared with lower pressure cylinders.
• Long 15-year service life and clear 3-year inspection cycle reduce long-term replacement costs.
• Customers report good quality and reliable performance that saves time and feels like a solid value.

Cons

• Not DOT certified, which may limit use or acceptance in regions or applications that specifically require DOT approval.

Specifications

Brand	TUXING
Actual Volume	6.8 L (414 cu in / 6800 cc)
Working Pressure	300 bar / 4500psi
Hydrostatic Test Pressure	45 MPa (500 bar listed hydraulic test)
Minimum Burst Pressure	102 MPa
Material / Construction	AL6061 aluminum alloy liner, full-wrapped carbon fiber and glass fiber, epoxy coated
Service Life / Inspection	15 years service life; 3 year inspection cycle

Our Verdict

The TUXING 6.8L carbon fiber scuba tank is a sensible buy for divers and high-pressure users who need a lightweight, durable cylinder with strong safety testing and a long service life. It represents good value for those who prioritize portability and higher working pressure, while buyers requiring DOT certification should seek alternative models.

Frequently Asked Questions

Is this cylinder DOT certified?
It is CE/EN approved but not DOT certified, so check local regulations if DOT approval is required.

How long is the service life?
The cylinder has a designed service life of 15 years with a recommended 3-year inspection cycle.

What is the working pressure and capacity?
The tank holds 6.8 L and is rated for 300 bar (4500psi) working pressure.