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】Designed for high-pressure air supply, this all-in-one air tank guarantees safety and reliability. 【4500Psi Working Pressure】With a working pressure of 30 MPA/4500 Psi, this tank provides sufficient pressure for various applications. 【Premium Aluminum Alloy Material】Made of aluminum alloy, this tank ensures durability and long-lasting performance. 【Multiple Sizes Available】Choose from different sizes, including 22L, 0.25L, 0.3L, 0.32L, 0.35L, 0.38L, 0.45L, and 0.5L, to meet your specific needs. 【Wide Application】for various scenarios such as cylinder refilling, diving, outdoor rock climbing, and aquarium oxygen supply.