TUXING 4500Psi 3L Carbon Fiber Scuba Tank - Lightweight High Pressure

In this review of the TUXING 3L carbon fiber scuba tank, the bottom line is clear: this cylinder is for divers, paintballers and PCP shooters who need a high-pressure, lightweight option that sacrifices little in durability. The reviewer found the 3L / 30 cu. ft capacity and 3000-4500 PSI working pressure deliver compact, repeatable fills while the AL6061 aluminum liner wrapped in carbon and glass fiber keeps weight low for easier transport. The tank is CE approved and built with safety testing in mind, which makes it a practical choice for active users who value portability and performance.

Key Features

• 3L capacity: The 3 liter (30 cu. ft) volume provides a compact reserve of breathing gas or fill volume for PCP rifles and short dives without the bulk of larger cylinders.
• High working pressure: Rated for 20-30 MPa (3000-4500 PSI), the cylinder supports high-pressure fills needed for paintball and PCP air rifle use.
• Advanced construction: An AL6061 aluminum alloy liner fully wrapped in carbon fiber and glass fiber gives a strong, lightweight body that resists corrosion and shock.
• Safety tested: Hydrostatic test pressure to 50 MPa and minimum burst levels up to 102 MPa indicate robust safety margins for composite cylinders.
• Service life: Designed service life of 15 years with a 3 year re-test interval provides long-term value for frequent users.

Who It's For

The TUXING 3L tank suits recreational divers on short snorkel or dive outings, weekend paintball and PCP rifle shooters who need a portable fill station, and anyone who transports pressurized cylinders frequently and wants to reduce weight. Its compact size and M18x1.5 straight thread make it convenient as a secondary or travel cylinder.

It is less appropriate for extended scuba dives or commercial breathing applications that require larger volumes or DOT certification; users who need DOT-approved cylinders or significantly longer bottom times should look at larger steel or DOT-certified composite options.

Pros & Cons

Pros

• Very light compared with steel alternatives due to full carbon fiber wrap and AL6061 liner.
• High maximum working pressure supports common PCP and paintball fill requirements.
• Durable epoxy-coated external surface resists corrosion and wear in outdoor environments.

Cons

• CE approved but not DOT approved, which limits use in some regions or regulated applications.
• Smaller 3L volume may not suit long dives or extended air-demand uses.

Specifications

Our Verdict

The TUXING 3L carbon fiber scuba tank is a strong value for users who need a portable, high-pressure cylinder for short dives, PCP fills, or paintball refills. Its lightweight carbon construction, CE safety testing and long service life make it a practical choice for recreational and field use, provided you do not require DOT certification or larger gas capacity.

Frequently Asked Questions

Is this cylinder DOT approved?
No, the cylinder is CE approved but not DOT approved, which can affect legal use in some jurisdictions.

What thread does the bottle use?
The tank uses an M18x1.5 straight thread bottle mouth.

How often must the tank be retested?
The specified re-test period is every 3 years and the design working life is 15 years.