Stainless Steel Non Return Valve

I’ve used plastic non return valves before. I wanted to up grade as this one is protecting my co2 system. Hopefully it will last forever.
It turned up when it was supposed to. Well packaged.
I would prefer that the flow direction was engraved into the metal, stickers could be put on the wrong way.
No brainier to fit a one way valve to protect equipment.

Jeff T., 02/02/2019