My purge valves were directional on my 1985 v-8 351W.
I had never seen a four port canister, that I could remember, and I owned a 1997 Ranger 4.0L, so, for anyone curious:
https://www.amazon.com/Dorman-911-198-Evaporative-Emissions-Charcoal/dp/B07KFZKCZK
Now, on my V-8 (from Colorado) , it...