Help finding Pressure/release valve spares

[Rosie]

Hi guys,

I bought some tanks with these CO2 pressure and release valves on them, but they all leak. I was hoping that they could easily be rebuilt, but am struggling to find the source company. Anyone seen them before and have any clues for me?

Otherwise, would you know of an affordable alternative? 1.5 inch RJT male with a pressure relief (these normally vent when hitting 2 bar) and complete release capability.

Thanks,
Jeff