Steel Reusable 1 Wire Braid Teflon Fitting, 5/8-18 Female SAE 45 deg Flare Swivel, -06 Hose, Straight

Reusable in this context means the fitting body can be disassembled from the hose and put back together for a new assembly. That saves you from throwing away hardware every time you need to swap or reroute a line. The steel construction holds up well through multiple cycles, and the Teflon-lined hose it works with handles the repeated assembly process without breaking down. Just make sure your hose cut is clean and square at that 1.25 inch cutoff length each time, and you should get solid performance out of it across reassemblies.