TUXING 4500psi 2.5L Carbon Fiber Diving and PCP Paintball Tank

In this review of the TUXING 4500psi High Pressure Composite Cylinder, the bottom line is simple: this is a lightweight, high-pressure carbon fiber cylinder aimed at divers and PCP paintball users who need a portable, durable empty bottle. The reviewer found the combination of a 2.5L capacity, 300 bar working pressure and a full-wrapped carbon fiber over AL6061 liner gives a clear advantage where weight and corrosion resistance matter. For anyone wanting a nonferrous, long-life tank for diving, shore dives or field fill for PCP, it stands out as a pragmatic option.

Key Features

• 2.5L capacity: Small but usable volume that keeps total pack weight low for multi-tank dives or field use with paintball rigs.
• 300 bar working pressure: High-pressure rating provides a strong gas yield for a compact cylinder when filled to 4500psi.
• AL6061 liner with carbon fiber winding: Full-wrapped construction reduces weight roughly 70% versus steel while maintaining strength and resistance to corrosion.
• Safety testing and ratings: Hydrostatic test up to 50MPa and minimum burst pressure around 102MPa give confidence in structural safety under expected use conditions.
• 15 year service life: Long inspection cycle and durable materials mean this tank is a long-term asset for frequent users.
• Epoxy coated exterior: Corrosion and abrasion resistant finish that helps protect the composite over repeated handling and storage.

Who It's For

Serious recreational divers who want a compact secondary bottle or travel tank will appreciate the TUXING 2.5L cylinder because it balances high pressure with low weight and corrosion resistance. PCP paintball players and field shooters who use remote fills will also benefit from the M18x1.5 straight thread and the high working pressure for efficient fills.

This cylinder is not intended for those who require DOT-certified steel tanks or large single-dive gas capacity; professionals who need maximum duration per fill should look at larger cylinders. Also, buyers who need an integrated valve or filled service should plan for separate valve installation and local filling checks.

Pros & Cons

Pros

• Very lightweight compared with steel cylinders, making it easier to carry during shore entries or extended hikes.
• High working pressure (300 bar) in a compact 2.5L volume provides useful gas for short dives and PCP refills.
• Durable composite construction and epoxy coating reduce corrosion and lengthen service life to 15 years.

Cons

• Ships as an empty bottle with a straight M18x1.5 thread, so a valve and professional installation are additional steps and costs.
• CE/EN approved but not DOT certified, which may limit acceptance in some regions or filling stations.

Specifications

Capacity	2.5 L
Working Pressure	300 bar (4500psi)
Hydrostatic Test Pressure	500 bar
Minimum Burst Pressure	102 MPa
Neck Thread	M18x1.5-6H
Liner Material	AL6061 aluminum alloy
Service Life / Inspection	15 years service life, 3 year inspection cycle

Our Verdict

The TUXING 4500psi 2.5L carbon fiber cylinder is a sensible purchase for divers and PCP players who prioritize portability, corrosion resistance and long service life. It offers strong safety testing and a lightweight composite build at good value, but buyers should budget for a compatible valve fitting and confirm local fill station acceptance due to non-DOT certification.

Frequently Asked Questions

Is this tank ready to use right away?
It ships empty: you will need to fit a compatible valve to the M18x1.5 thread and have it tested/installed by a qualified technician before filling.

Can this cylinder be used for diving and paintball?
Yes, the 300 bar working pressure and compact 2.5L volume suit short dives and field fills for PCP paintball systems, but check local fill station policies.

What certifications does it carry?
The cylinder is CE / EN approved with hydrostatic and burst test ratings; it is not DOT certified.