Heater bypass valve A/C 1969 Charger

[B-Body 70]

Hi everyone, I’m rebuilding my heater A/C box. Does anyone know the best vender for tha little bypass heat control vale on top of the core? I see a lot of different places that sell them. Using Glen Ray for core redone and DMT for gaskets mega kit. Just stuck on what’s the best to purchase on that valve.
Thanks all.
Tony