feature: ●Working pressure: 30 MPA / 4500 Psi ●Bottle thread: M 18*1.5 ● Outer diameter of bottle: 60mm ● Thickness of bottle wall: 6.3mm ◆ Volume: L/L optional ◆ Applicable medium: oxygen, carbon dioxide ◆ Application scenarios: cylinder, diving, outdoor rock climbing, aquarium oxygen supply... Specifications: Part name: High-pressure gas cylinder Material: Aluminum alloy Size: 0.22L-Height*Diameter: 180*60mm 0.25L-Height*Diameter: 197*60mm 0.3L-Height*Diameter: 221*60mm 0.32L-Height*Diameter: 236*60mm 0.35L-Height*Diameter: 247*60mm 0.38L-Height*Diameter: 267*60mm 0.45L-Height*Diameter: 305*60mm 0.5L-Height*Diameter: 335*60mm Color: Silver Seal Safety Design Seal Ring Groove Design Safety Seal A perfect aluminum can for any marker that works with high pressure air. High pressure gas cylinder valve - valve thread conforms to standard - inlet thread size: M 18x1.5-6H Size: 0.25L/30MPA, 0.3L/30MPA, 0.35L/30MPA, 0.45L/30MPA Package Content: 1*Air tank Note: Due to manual measurement, please wait for a difference of 1-3cm. Due to differences in monitors and lighting, images may not display the actual color of items. Thanks for your understanding. 【Explosion-proof Aluminum Air Tank】This all-in-one PCP cylinder features an explosion-proof design, providing a safe and reliable container for high-pressure air. 【High Working Pressure】With a working pressure of 30 MPA / 4500 Psi, this air tank ensures optimal performance for various applications. 【Sturdy Construction】The aluminum alloy material and 3mm thick bottle wall ensure strength and durability. 【Optional Volume】Choose from different volume options (22L, 0.25L, 0.3L, 0.32L, 0.35L, 0.38L, 0.45L, 0.5L) to meet your specific needs. 【Wide Application】Perfect for cylinder filling, diving, outdoor rock climbing, aquarium oxygen supply, and more.