Premium 5 / 8 male steel cylinder connectors crafted from copper ensuring leakproof and durability in high pressure environments, ideal for industrial systems and outdoor applications for harsh conditions like construction sites, marine environments, and pneumatic tool setups where resistance and rapid line assembly are critical for operational and efficiency Compact copper connectors reduce toolbag bulk without compromising reliability, featuring reinforced threading that withstanding pressure cycles for long term industrial transfer solution Professional technicians, HVAC specialists, and mobile repair crews will appreciate the lightweight copper construction for quick deployment during maintenance or fieldwork requiring frequent equipment swaps Easy installation design with 5 / 8 compatibility eliminates the need for adapters, streamlining connection across multiple cylinder types while maintaining seals through machining, Manufacturer: Watreketal